MAHLE Smartbike Systems X20 TCS Bottom Bracket Size:BB86 travel/drop 220-240mm diameter 30

travel/drop 220-240mm diameter 30

S Lower EC44 Bearing Type Cartridge Crown Race 33 Color Black S

Carrier shape prevents the entire rotor from deforming due to heat and reduces rubbing noise while riding

One end features a 14mm opening and the other fits into the tension springs to rotate the brake on its bolt

MAHLE Smartbike Systems X20 TCS Bottom Bracket Size:BB86 travel/drop 220-240mm diameter 30MAHLE TCS (torque and cadence sensor) bottom bracket helps riders conserve battery by measuring the power input from the rider and adjusting the support from the motor accordingly. Torque accuracy of approx. 95% (+ 5% of tolerance) Torque signal refreshing each 5ms Cadence signal of 40 pulses per revolution