freewheel

  1. Pablo

    Grubee Freewheel Crank Assembly

    http://sickbikeparts.com/grubee-freewheel-crank-assembly/ Freewheel crank assembly to be used with the Grubee 4G 1BMS drive system. This kit will get you there. Developed in cooperation with Grubee using our mature Shifter Kit technology. Comes with chainrings, hardware, freewheel adapter...

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