MAHLE Smartbike Systems X20 TCS Bottom Bracket - PF46-30 With Torque/Cadence Sensor MFPN=20429 Flat Protection Tread and SidewallColor

Flat Protection Tread and SidewallColor Black/BrownDefined Color BrownISO Width (mm) 48ISO Diameter 584 / 650b / 27

Constructed of aluminum

Includes silicone band to keep your phone securely in place

and for those looking to optimize each detail in pursuit of speed

}SRAM PC-1051 Chain - 10-Speed 114 Links Silver

MAHLE Smartbike Systems X20 TCS Bottom Bracket - PF46-30 With Torque/Cadence Sensor MFPN=20429 Flat Protection Tread and SidewallColorMAHLE 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 Size PF46 30