Support Infocrank icon Power Meter


Should you need help fitting your InfoCrank, linking your bike computer to it, or you think it has developed a fault, then we have extensive resources available to help. If you prefer you can contact one of our InfoCrank specialists who would be pleased to help.

Aren’t cadence magnets a thing of the past?

The built in cadence sensors within the InfoCrank power meter operate using extremely fast acting reed switches. The magnetic sensor is more accurate, consumes less power, and has faster start up and response times than other methods of measuring cadence. 

Alternative cadence measuring methods such as accelerometers would not give the response rate required for functionality of the power meter. A cadence magnet is still the most accurate measuring method, so while an accelerometer would be accurate on average, it may not be as accurate per pedal stroke.

See the attached presentation to see examples of accelerometers vs cadence magnets.

Did you know you can now use InfoCrank without cadence magnets? Have look at our magnet free RevUp firmware FAQ

What does the LED light signify?

FAST FLASHING, NON-STOPThis is a mode called Boot Loader. If the crank is left in Boot Loader mode, the batteries will drain fast, the head unit will not connect and power will not be recorded. Boot Loader mode is used in firmware updates, and in some cranks, turns on when the cover is tightened down on powered batteries.  If your crank lights only flash once, you do not need the magnet to get them out of BootLoader as they are already into Operating mode automatically.To turn Boot Loader mode off (when lights are flashing) and switch InfoCrank into Normal Operating mode, simply pass a magnet over the transmitter (Radio Frequency cover) on the back of your InfoCrank arm. This is only necessary in cranks where the green light flashes multiple times when batteries are changed.SOLID LIGHTIf the crank is showing a solid light there you may need to:1. Check battery level by using the free VINC App or by following the steps in the General Diagnostics Guide. Low battery levels can cause a solid green light.2. Remove and replace the cover, and follow the steps above to turn Boot Loader mode off (in cranks where the lights blink) and switch InfoCrank into Normal Operating mode.

My InfoCrank is showing wrong or no cadence and/or power numbers.

In many cases all you need to do is remove the batteries and re-install them. Be sure your batteries are SR44 and have enough charge. Wrong batteries and low charge have a huge effect on proper measurement!In some cases a re-zeroing solves the problem. To calibrate your head unit to InfoCrank correctly:1. Position crank arms at 12/6 o’clock (vertically) 2. Ensure there is no load on crank arms 3. Select calibrate/manual zero on bike computer- repeat if necessary to reach 0.4. Done ;)In other cases a firmware update may be required. If the battery reset above doesn’t do the trick, use the free Android InfoCrank Firmware Updater App (available for free at the PlayStore), or follow out firmware link here for updates or for newer cranks free VINC App (available on the PlayStore can be used to check if cranks are measuring. Because left and right are both shown, you can test whether each crank responds appropriately when weight is applied.If you’ve successfully installed the latest firmware, have checked VINC for balance and torque readings and are still encountering problems, email for further troubleshooting instructions.

How do I know what spacers or washers to use?

Having trouble figuring out what spacers or washers to use with your new Ceramic Speed M30 bottom bracket? We know it can be bit of a learning curve, but the M30 Ceramic Speed BB is pretty simple. 
Make sure it has been properly pressed into your frame. If you encounter spacing issues or clearance issues, it is not uncommon from the BB to not be installed all the way flush with the frame. 
Its best to use the spacers according to your chainline needs. We recommend using only one spacer on the drive side and then check to see if your chainline is set. If additional spacers are required feel free to use them.
There is no perfect recipe for the Ceramic Speed M30 installation when it comes to spacers. You might not need any, you might need all of them provided. Best to try a few variations before heading out for a ride. 
If you have any further questions regarding this, contact

Front derailleur isn’t shifting well?

Front derailleur needs to be adjusted if the customer has changed chainring sizes. For example: Went from Standard Compact 50/34 to Professional Compact 52/36 or visa versa.

Check chainrings to be sure they are properly installed. See Praxis chainring guide below.

Product Warranty & Repair Process

Please review the warranty terms below.Obtain warranty service in 3 easy steps:Register – Visit the Verve Support webpage to register your InfoCrank.Request a repair – On the Support Portal create a ticket and give us as much information about your issue as possible.Send us the device – Our support Team will guide you where to send your InfoCrank to.

New boot loader/flashing lights mode…

You may be familiar with our current need to swipe a magnet past the domed module cover after inputting batteries. This may be the case for many InfoCrank out in the market, but we’ve recently made some changes to work better with out magnet free firmware. Many newly purchased InfoCranks will come with a new boot loader mode. In laymen’s terms: the rapidly blinking light no longer blinks rapidly or requires a magnet to pass the domed cover for operation.How do you know if your crank has this type of boot loader mode?…Install batteries
If light blinks repeatedly, then you’ve got the old bootloader. Swipe a magnet past the domed module cover, apply load and pair with head unit.
If no light (or if the light blinks once) but crank wakes with load applied or responds to magnet, then you’ve got the new boot loader version. 
In some troubleshooting instances a Recovery Mode update may be required. This recovery mode process differs depending on what hardware you have.For further questions or general thoughts, please contact us as  Thanks!

What bottom bracket is supplied with InfoCrank?

InfoCrank with Praxis Works M30 System:We built your InfoCrank power meter with a Praxis spindle that fits Praxis BB30, PF30, BB86, OSBB, ITA and BSA (English threaded). Your power meter system will come with the Praxis bottom bracket that you choose upon ordering. All bottom brackets come supplied with M30 installation tool.Second M30 bottom brackets are available for purchase from Praxis Dealers or the Praxis online store to enable your InfoCrank to easily swap between bikes.Praxis purpose-builds bottom brackets instead of using spacers. Our aim is to continue to purpose-build instead of using spacers for other bottom brackets in the marketplace. BRight, BB386evo, and BB30AWe have ceramic BB solutions for these bottom bracket standards. It is available at a retail and wholesale level for an additional purchase price. Please contact your sales rep or for more details. BB90 (Trek): To install on Trek’s BB90 platform our InfoCrank Classic fitted with a 24mm Spindle is required. Bottom bracket not included.

My front derailleur is not shifting or shifting well?

Check to be sure your chainrings are properly installed. It may seem basic, but if you can see any logos on the front side of the small chainring, your small chainring has been installed back to front. This will affect shifting. Please see attached instructions.

You should always check your derailleur when installing new chainrings.

ISIS Bottom Brackets

Most Track bikes are still made with Threaded Bottom Brackets for stability and strength.   The ISIS cartridges thread in and can be fitted to most frames and have some adjustability to fit differing chain lines and carbon tolerance imperfections.    The normal threaded BB is 68mm in diameter and the standard width of the ISIS BB for a track bike is 108mm.These are readily available anywhere in the world and many track bikes already have them installed.   Hence, Verve does not supply the BB, allowing you to choose the quality that you prefer.    The downside with ISIS (or Square taper) Cartridge BB’s is that the bearings are quite small and they “wear out” quite quickly.  However, they are also not very expensive generally.Some people ask about Ceramic ISIS cartridges.  The only ones that we are aware of come from a US company called Omni.   We have not tested them, but they make big claims about them.   We have attached some screenshots of a couple of well-known versions.Our testing, performed on our behalf by British Cycling, utilised Truvativ 108 ISIS bottom brackets.  These were fitted to Cervelo T4 Track frames.   Other ISIS BBs were also tested.   However, among the name brands, we also found that at least one of them did not preload sufficiently, in our view.The attached PDF shows the difference between the Truvativ and the FSA ISIS BB with an InfoCrank pushed on till it pre-loads.  As you can see there is not much tightening space on the FSA model.    Some other ISIS BBs have even greater capacity than Truvativ.We therefore tested a random sample of this batch of cranks to check them against various Bottom Bracket cartridges.  Our view is that the Track InfoCrank® is best paired on a bike to the Truvativ ISIS Bottom Bracket Cartridge.  We do not supply these at this stage, but it the demand is there, we will consider doing so.   If you cannot source a BB in your location, please contact us for assistance.

VINC Tests for InfoCrank

VINC Test- Scan/Connect which finds the cranks (if activated) and shows the number of the crank, the length, firmware- Zero the cranks (bike upright with cranks in 12/6 o’clock position and no weight – continue till zero)- touch the crank number which opens up the menu for each crank separately. Battery strength is shown in volts. There is a menu for “torque” “diagnostics”, “waveform” & “riding with magnets”.- touch “diagnostic” symbols which light up (red light above the signs as on the screenshot below), for both cranks and leave open until both crank lights are flashing slowly- touch the square box in the right corner to return to operating screens.- on screen one, you will see that the cadence is now (artificially running at) 60rpm so that a power number can be generated. Just flexing the cranks (in the direction for pushing the bike forward) will give a torque and power reading.  While bending one crank you should get a torque reading for that side, and in the balance section it should show 100% for that and 0% for the other side.- if both cranks register about the same torque, and only register the one side that is being tested, they are measuring and transmitting, properly so return to the scan/connect button, open the separate menu again for left/right and turn OFF the diagnostic buttons – waiting until the lights on the cranks turn off before closing the App.

Why does InfoCrank report cadence as decaying?

1. decay, decline(noun) 
a gradual decrease; as of stored charge or current

In a nutshell: Because InfoCrank’s system will accurately measure down to 5 rpms versus a much higher minimum cadence used by other powermeters (20-30 is a common minimum rpm measurement).
Nutshell explained:
A power meter’s computer module records cadence every time a switch is triggered but what if there is no trigger? After a few seconds ANY program has to make a decision….is the cadence just slowing or has it stopped?
Other systems will set a very high minimum cadence such as 20-30 rpms and then hold the last cadence when the cranks stop rotating so after 3-5 seconds it will show a zero. But any cadence under 20-30 rpms is then erroneously recorded as zero.
Because we can measure down to 5 rpms, this would require our computer to hold the last cadence for 12 seconds waiting for the next trigger. So, we have chosen to display the cadence as decaying in case the rpms truly have dropped to a very slow rate rather than completely stopping.
This is how it works:
If a cadence trigger is late by more than 0.5 seconds and then every second thereafter we calculate the maximum possible cadence and transmit this to the display. The true cadence could be less than this value, but never greater.
Once the cadence is more than 15 seconds late (4rpm) then 0 cadence is transmitted to the display.

If the rider suddenly changes their cadence to a lower value, say from 90 to 20, then over the 3 second period, the display will show …90, 90, 60, 30, 20, 20… That is it decays RAPIDLY to the new value.

Cadence Rules Applied Message

Some riders get a file integrity email every so often and depending on terrain, or maybe after every ride saying “Cadence rules applied. One or more cadence values were discarded since they were outside the user’s acceptable range. It’s possible the athletes cadence sensor needs attention.”The facts behind it are:- the InfoCrank® determines when a cadence event has occurred, by either passing a magnet or by the “power peak”.- both of those methods are superior to accelerometers, but are subject to “false positives”.- InfoCrank® policy is to NOT cut out any data – even if we could determine it might be in error.  This differs from many HR and power meters.- your analysis software has an ability for you to automatically cut out any numbers that appear wrong, but also gives a warning that you have done so.   We recommend that you set the cadence, HR  and power numbers cut-off limit to 10% above your current best. Some programmes allow you to manually cut them out – some will do it for you.The reason that these false positives occur normally relate to the way in which we ride – not everyone does this – but if you cruise with your cranks in a horizontal position making short sharp up and down movements as you come to bends or stops, you may trigger this false positive.

My head unit won’t connect to my InfoCranks?

Activate the InfoCrankFirstly, you need to ensure that both cranks are active and ready to pair. You can wake up the cranks either by placing load on the crank arms or manually swiping a magnet behind the module. Be sure you put your body weight on the pedals to apply load. Just using your hands/arms may not be enough to activate. Once your InfoCrank is active, go to your head unit pairing settings to search for your InfoCrank ANT+ signal.Check ANT+ CommunicationYour head unit and our VINC app (or Firmware updater) use the exact same RF communication (ANT+). Therefore, check if the VINC or Firmware updater detects the InfoCrank. If they do, the InfoCrank is transmitting and then the issue is likely to be caused by the head unit. Check forums and instructions from your head unit manufacturer for trouble-shooting options for pairing using that product.We have experienced issues in the past with Garmin bike computers that suddenly start losing paired devices and then become difficult to reconnect again. The best solution is to delete the device from the Garmin and then manually re-enter the serial number etched on the back of your InfoCrank. If this doesn’t work, apply pressure to both crank arms to ensure both modules are awake. If you still have no luck, install new batteries and try the process again.Check the Serial NumberYour InfoCrank serial number can be found on the back of the crank arm near the black plastic RF dome cover (Example: S/N:000181). You only need to enter the last few numbers (i.e 181). Check Battery LevelsYou can check the real battery levels with our Android apps – VINC and Firmware updater – or with the PC/MAC/Linux firmware updater program. Check battery levels.

Right Crank not working (or cranks not working)

StepsActionOutcomeComments1.Open the VINC App and wave magnet past cranks or apply significant torque.  Remember to allow time for right crank to respond, after left crank sends the message.Check that no options are selected in the four option boxes under the serial number. (No red lights should be showing.)If cranks are found, check battery level according to the app. Then run through some tests, just to ensure transmission.If crank(s) not found, then install new batteries and repeat step one.  If crank(s) not found then move to step 2.If ‘diagnostic’ is selected (glowing red) no data will show on the head unit for that crank.Turn all data options off. (No red lights showing)Cranks are working, problem is elsewhere.Check if crank is now ‘working’.2.Open up crank that is NOT registering to check the inside battery compartment and inspect for any battery loose contacts or discolouration.Photograph the interior and if either an obvious loose/missing connection or discolouration is visible, send the photo to Support.Broken contacts or water damage should be reported to Support. To ship for repair, battery covers should be on, chain rings removed and cranks returned in accordance with instructions from Support.3.If no obvious damage is observed:Install new batteries and using VINC, attempt to pair the cranks (Scan/Connect) as in step one.Close VINC and open up the Firmware Updater App on Android and once again scan for cranks waking up with magnet or significant torqueIf firmware updater finds the cranks, check the battery level and also the firmware level. .206 is the latest firmware.If crank(s) not detected move onto step four.Follow instructions for update if below .206. 4.In right upper corner, touch the three dots and open up the menu.Tick the box for Manual Update.The manual update menu opens on the bottom of the page. Enter the serial number of your crank (just the last four numbers on the rear of the crank- S/N) Make sure you deal with the right crank when “Right” is selectedPress the “play” button to upgrade the right crank once the crank is in bootloader mode.A message “Start manual update” will show. Go ahead with that.  In order to put the cranks into bootloader mode, you will need to remember which hardwired software your cranks have. (See below)Older software: Cranks automatically go into Bootloader -indicated by flashing light- when batteries are installed or battery cap is opened then closed again.  If crank light is flashing, just press the Update button.Newer software: Cranks automatically go into ride mode- only one flash when batteries are installed.  In order to put into Bootloader mode, a magnet needs to be held right against the back RF cover while the open battery cap is refastened. Once the cap is on and the light is flashing, press Play, then Update for the update to proceed.The yellow line on the bottom will give some indication of the progress of your upgrade. (Interruptions to wireless at this stage are not good and the process will need to start again.)When the first crank is updated, repeat with the other crank.  Change indicator to “Left”, put into bootloader, follow instructions.After a manual update, it is good to check that all is well.5.Open VINC  and then conduct Tests for Torque (as above).If successful, just ride.If not, discuss with support on next actions.

24mm InfoCrank – use of spacers

The 24mm InfoCrank® is designed to fit on many different bike frames ranging from 86.5mm to 92mm.   This means that the spindle, spacer and BB combination may need some work to make it totally right for your bike, even if your bike is in spec.The way to work this out is;- firstly, fit your cranks with no spacers – only dustcovers –  and see how much spindle is left over on the Non Drive side “NDS”.   – check your chain line and front derailleur shifting in that configuration.- if shifting/chain line is OK, then add spacers to NDS.  If necessary add wavy washer to DS- put necessary spacers on the NDS and tighten NDS crank fully, ensuring that cranks turn unimpeded.- A little bit of play is not a problem, but should be virtually unnoticeable,

Should I re-zero or re-calibrate InfoCrank before each ride?

No! No zeroing or calibrating is required. If, out of habit, you re-zero, tare or press Calibrate every day, that’s also fine, but it is not necessary, and if performed incorrectly it could alter the accuracy of your left/right balance readings. In the event of a major bike crash directly impacting the crank, you can use your ANT+ enabled device or our VINC app to calibrate InfoCrank.To calibrate InfoCrank correctly: 1. Position crank arms at 12/6 o’clock (vertically) 2. Ensure there is not load on crank arms 3. Select calibrate/manual zero on bike computer or in the VINC app4. Done ;)Here’s an example of what you would see if your crank has been incorrectly calibrated:If the cranks were tared while horizontal, the weight of the pedal and crank arm on the strain gauges adds approximately 100 grams to the zero reading. At 90 cadence, 100 grams is equivalent to 1.6 Watts. If the rider was producing 100 Watts then the balance would show as 98/2. If the rider now rode using the other leg, it would show 0/100 balance.For questions or concerns regarding calibration please email

Spikes and other anomalies

We have attached an article that describes the pedal stroke measured by InfoCrank and some of the anomalies that might occur. If you have some spikes in your wattage or cadence, this may be good to know.

Do I need to get InfoCrank fitted by a bike mechanic?

This depends on your personal mechanical skills and access to the appropriate tools. InfoCrank is very simple to fit with the compatible M30 bottom bracket convertor for your frame. 

However, some installations may require the removal of PressFit bearings already in your frame and this should only be done by experienced mechanics with the proper bearing puller tool to prevent damaging your frame.

If in doubt, we suggest a qualified bike mechanic. If you’re unsure who to visit, check out our Affiliate map or start a Ticket and we will point you in the direction of a qualified Affiliate.

Where can I buy batteries for InfoCrank?

The batteries in the InfoCrank cycling power meters are very common SR44 silver oxide cells. You may be able to find them at your local hardware store. They are also used for hearing aides and watches so places that repair watches may stock them. Ensure you buy the best quality batteries to get the longest use out of them.In development, we tested a large number of batteries and while most stated a huge lifetime (around 1000 hours according to our power drawing), even the best struggled to perform as specified (some lasted less than 200 hrs). Whatever you do, please buy the best quality batteries available for your InfoCrank.SR44 may also be labelled as 357 in the USA.Please make sure you purchase Silver Oxide batteries, NOT LR44 which are alkaline. Alkaline batteries will be drained in your InfoCrank within 2 – 5 days. If you have had short battery life, please check with your battery provider that you have purchased Silver Oxide SR44 or 357s.It is also now possible to buy good quality batteries online at very good prices.  Once again, check for quality and only deal with someone who does a lot of business – i.e. moves their batteries quickly and does not carry old stock.   Every country or continent has some good online battery shops and Verve also carries supplies of batteries. We can supply them to you, but they may cost more than some of the online dealers.  Varta and Renata are brands we have usually found to be good quality.

How do I pair my InfoCrank with my head unit?

The process of pairing your head unit (Garmin, o-synce, etc..) is a little bit different than normal. Because there are no magnets installed to activate the crankset, load much be placed on the crank arm to activate the strain gauges. After you have successfully updated your crank to RevUp firmware, place load on the crank arms to ensure they are active and ready to pair. Be sure you put your body weight on the pedals to apply load. Just using your hands/arms may not be enough to activate. Once load has been applied to your InfoCrank, go to your head unit pairing settings to search for your InfoCrank ANT+ signal. For any questions or concerns email

Can I replace the InfoCrank batteries myself?

Yes, the battery is simple and quick to change. Full instructions attached, and below.Using a standard 2mm allen (hex) key (usually the smallest one on a typical Bicycle multitool) undo the screw in the center of the battery cover in a counterclockwise motion.Remove the cover.Replace the batteries with two SR44 or 357 type button cells. They must be silver oxide, not alkaline.  Make sure the positive face (+) is uppermost.Replace the battery cover. It is important to match the clear plastic light pipe on the inside face of the battery cover into the small hole that is in the battery socket.* See the pic below.Take care tightening the screw, sealing is NOT dependent of screw torque. Slowly tighten the screw until it comes to a mechanical stop – do not tighten any further.The LED inside flashes when the cover is replaced and is visible through the light tube. Some models only flash once and others flash or show steady for some time. If the green LED is flashing, use your magnet to wave near the RF cover till the lights turn off. Once the green LED is off, your cranks are ready for operation. Please note that if you do not stop the lights flashing, your batteries will drain quickly!Click here for more information on battery type.*Installing the covers incorrectly and then forcing the cover closed can lead to crush or deform the light pipe which can crack the joint and let water in.

General Diagnostics Guide

These procedures must be performed in sequence to identify a fault in the module. Ensure the module has the latest firmware installed before performing these tests. 1. Battery TestWith the free VINC App on an Android phone or tablet, exact battery voltage can be read on the front page, for each crank independently. If you do not have VINC, the following test will determine if the module has sufficient battery power.Remove the battery cover with 2mm hex keyRemove battery cells and check contact for dirt or damage. Also check that batteries are SR44 not LR44.Re-install batteries and module cover. Watch the light carefully-For older cranks, the LED light should begin flashing rapidly, and should be stopped with the magnet touched onto the back of the module. For newer cranks there will just be one quick flash when batteries come into contact. (No magnet swipe is necessary) If lights flash, this indicates there is enough battery to power the cranks.2. Cadence TestThis procedure tests the cadence sensors for correct functionality.Trigger the cadence sensor by waving a magnet past the RF cover on the back side of your crank arms and observe the LED light. If the LED light flashes when magnet passes the cover, it has passed the test and works correctly.If the LED light does not flash when magnet is passed, be sure it is in line with domed cover and in a close proximity. If the LED light does not flash after magnet is passed, your Cadence system is faulty. Please create a ticket for additional support.3. Calibration TestThis is the final test and must only be performed if all other test have been completed and passed. If using o-synce computer follow the below instructions. If using other computers and are unfamiliar with the dashboard please contact your computer supplier directly to insure proper procedures are taken. The first step below is essential for ALL calibrations, no matter which head unit is being used!! Use other steps according to your head unit instructions, making sure if there is an automatic zero/calibration function, it is turned OFF.Go to: Setup > Sport Profiles > Name of profile > Sensors > Power > Calibrate>Manual ZeroSTEP 1 – Set up bike for calibrationPosition crank arms at 12/6 o’clock (vertically)Ensure there is NO load on crank arms Select calibrate/manual zero on bike computer STEP 2 – Press calibrate. Record number displayed.Load the cranks by positioning them horizontally and stand on them or go for a ride and ensure both positive and negative torque is applied.Repeat step 1 above and take another calibration reading. Record results.STEP 3 – AnalysisDownload the attached file below.Subtract results of step 1 from the results of step 2 to discover your calibration value. If the results of steps 1 and 2 are more than 20 numbers different please create a ticket for additional support.To ensure procedure was done properly please repeat steps above to confirm results.

How long will the batteries last?

InfoCrank is a highly efficient system, and the SR44 or 357 batteries can last over 200 hours of riding. Battery life is dependent on both environmental conditions and battery quality.  Be aware that there are many varying qualities of batteries available, so to ensure the longest ride time always buy the best quality batteries and replace all four at the same time.Click here for more details on which batteries to use.

Bottom Bracket Creaking?

Was bike frame bottom bracket and all threads (if any) thoroughly cleaned before installation?

Was dust seal installed and installed properly?
Fit the dust cover over the non-drive side bearing with the smaller diameter alloy flange against the bearing.

Is O-ring installed on NON DRIVE SIDE? Was O-ring
compressed on installation?

Is Bottom Bracket tightened to proper specifications?
-BB30/PF30/OSBB Alum/OSBB Carbon-
Machined Stop, Drive cup should be tightened until it bottoms out on NON Drive
-BSA/Eng Thread- tighten to 40nm of torque

OSBB Carbon- Are Delrin PF cups pressed flush to
the frame?
Were Anti-Seize and Grease used at the appropriate
BB30/OSBB Alum-

-non drive shell towards ends, only on ends of cups not in
-drive cup on the threads and smooth taper area
just above threads

-drive cup on the threads and smooth taper area
just above threads
OSBB Carbon:
– drive cup on the threads and smooth taper area
just above threads

grease on the underside of included outer seals, then place over bearings with
Praxis facing outward

-Thin layer of grease on non-drive cup ends, not in the
-With o-ring and pf sleeve installed – thin layer of grease
on the sleeve towards the ends of the cups
grease on the underside of included outer seals, then place over bearings with
Praxis facing outward


dab of grease on provided delrin pf cups
– Dab grease on the underside of
included outer seals, then place over bearings with Praxis facing outward

grease to the frame bb threads and both cups of the BB.

Will M30 InfoCrank fit my 24mm bottom bracket?

Let’s talk about Bottom Brackets and Frame Shells.You might have a 24mm Bottom Bracket in your Frame Shell right now. Your Frame Shell may be able to fit a 30mm Bottom Bracket. The InfoCrank 110BCD has a M30 spindle and requires either a Praxis M30 Bottom Bracket or a CeramicSpeed (BBRight, BB386evo, and BB30A) BB to be installed into your Frame Shell. You cannot keep your current 24mm Bottom Bracket mounted in your frame shell.Please click here to see our list of Frames that are compatible with the M30 bottom bracket.If you don’t know what Frame Shell you have, please create a ticket and we will discuss your current bike set up with you to ensure compatibility. We will need to know your frame type and year of manufacture. A bike mechanic or your frame manufacturer should also be able to tell you what Frame Shell you have.We have also released the InfoCrank Classic that is fitted with a 24mm spindle. The InfoCrank Classic is not supplied with a Bottom Bracket and can be adapted to your Frame Shell with an after market solution. A standard Shimano type bottom bracket will be required to install. 

Battery Drainage

We have found the quality of retail silver oxide batteries to be highly variable. The batteries we supply are well suited to InfoCrank as they maintain full operating voltage until nearly empty.A complaint we all have with many of our electrical products relates to the storage and drainage of our batteries. Verve tests many cranks that come in for service or refurbishment in relation to battery usage, but rarely do we get to run a full continuous running test. Our tests generally indicate that the power electronics are not draining batteries beyond the planned specs, yet we acknowledge that batteries sometimes deteriorate faster than any of our models. You can read more on our battery drainage test in the attached pdf.We can only recommend one of two things:-    Buy your batteries from reputable dealers who constantly have new stock-    Buy them from Verve if you live within the zone where transport is not too much of a problem (Airlines and couriers are often refusing to transport batteries, and not discriminating even though the problems are with different batteries to those used in InfoCrank®.)What batteries do you use?  We supply OEM quality Renata 357 (SR44) silver oxide batteries with all purchases of InfoCrank®. We know when the batteries were manufactured and packaged and generally they last as seen in the test attached.However, in the day to day operation of our business (taking into account the problems with transporting and packaging batteries) we often buy from bulk dealers at very competitive prices.  In this case, we tend to use the predominant “work-house” brand in the region.  For instance, in the EU we often use Varta.  What battery problems do you see most often?  Most regularly, we find that the wrong battery type was inserted into the InfoCrank®. LR44 batteries not only run down in a different way to SR44 batteries, but often are smaller (height) and so “bounce” around inside the cavity doing damage to the interior.   Another major problem is the false readings that show on your bike computer.  In this case, the computer indicates that the battery level is low – normally the right crank, because it is the slave crank – and does not correct when the voltage level returns to the correct level.   This often means that the rider is concerned that their batteries are low much earlier than they actually are.This is compounded by the problems with certain bike computers to lose pairing after a battery change and not restore until the bike computer has been unpaired and then repaired.  Meanwhile, many riders think the InfoCrank® has a problem.


A break through in cycling occurred with the technology that enabled VINC.   For the first time, the cyclists actual pedal stroke is visualised throughout the entire stroke of each leg.  The resulting waveform is useful for measurement, diagnosis, correction and improvement.For the advanced, there is also access to Torque Streaming.  Used by Team GB and many elite Track cyclists, this technology takes the 256 measurements per second and translates them into streaming torque measurements regardless of pedal stroke.Other pages are useful for specific power training and normal intervals, where the graph is easier to follow than a set of numbers on the screen.All measurements are displayed to the decimal point.

Firmware Updater and Restore

Verve has released a new firmware updater on Android.  That means that you are able to use your phone or tablet that has the Android operating system to upgrade your cranks in a very simple format.The app is available in the Play Store – just search for “infocrank” – and uploads very quickly.  The firmware updater is enabled for both automatic and manual upgrades (or restore) and is capable of doing many cranks in a production line to save time and control errors.The latest firmware to date is .206, which is the “magnets optional” version with other enhancements added since the ground-breaking .205 was released.

Checking Battery Levels

One of the banes of our existance is the false reporting of battery levels by many GPS bike computers.  Simply, voltage fluctuates under load and the ANT+ message of low battery may reflect that fluctuation, but it does not correct when the level returns to normal.  This leads to many riders changing batteries much too early.    Your InfoCrank® will run with voltage per crank down as low as 2.7v and report accurate numbers.  Below 2.6v the results are more problematic and it is time to change.The PC/MAC/Linux firmware updater app available from has a front page that essentially is a line by line check of your crank.  It shows details of all the important parameters including battery strength.   You do NOT need to do an update using the programme, but you can easily check the battery level.  It will tell you also if the batteries are dangerously low and if they are finished, it will not find the crank.The Android apps – VINC and Firmware updater – also show in simpler form the state of your InfoCrank.   These are available from the Google Play Store – search for infocrank.   Also download the ANT Tester so that it can check your device to see if you need to upload any drivers, though most Androids have ANT installed.VINC does a test when the cranks are paired and shows the crank number, length, battery level and firmware level.  Once again, easy to see if your batteries really need replacing. Android Firmware updater is designed for total simplicity and just does it checks and tells you whether the cranks have enough charge to do an update.  Clue…if they have enough charge for an update, they have plenty for reading your InfoCrank®Remember to replace both batteries in a crank when the level gets too low.  Right cranks often use more battery than the left because they transmit to the left crank – and the bike frame is not a conductor and the messaging is difficult – while the left crank transmits to your bike computer, which is relatively easy.   That is also why they are harder to “find” by the apps and the bike computer.

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