2pk 4mm CrankArm Cadence Band Magnets Universal Computer Sensor Crank arm Magnet

Universal 4mm Crank-Arm Cadence Band Magnet 2- Pack - These magnets fit a wide range of crank arm shapes - Bands extend outward 4mm from the crankarm towards the frame when installed - This listing includes two (2) 4mm Crank-Arm Cadence Band Magnets - Universal : Works with all computer cadence sensors - Slip on band cadence magnet - Provides additional clearance for when frames are close to the crank arms. - See our store for the 5mm, 9mm and 26mm thick band-magnets