A cyclist generates power by applying Tangential Force, or Torque, to the cranks. This is the only force the InfoCrank® measures, in both the Left and Right Crank, giving you impressively accurate power readings (0.06% error at 3000W as measured by British Cycling).
Axial Load produces tension or compression in the crank arm. It is highest when the rider’s weight acts downward on the pedal when the pedal is at its lowest point.
Side Load can be present when the rider leans the bike during hard acceleration.
It is not possible to apply Pedal Axis Torque to the crank through the pedal unless the pedal bearings are faulty.
Crank Axis Torque is always present since the pedal centreline is necessarily offset from the crank.
Side Torque bends the crank towards or away from the frame. This load is highest when the rider’s weight acts downward on the pedal when the pedal is at its lowest point.