Bicycle transmission

Details Bicycle transmission Bicycle transmission

B - Operations, Transporting

62

M

74/32

B62M 25/06 (2006.01) B62M 11/06 (2006.01)

Patent

CA 1124103

ABSTRACT A multi-speed bicycle transmission located at the drive pedal hub and including a drive pedal actuatable shifting assembly for effecting gear change in response to limited reverse rotation of the drive pedal shaft at a pair of pre- determined locations in the path of rotative displacement thereof. The drive pedal responsive shifting assembly further includes a slidable collar on the drive pedal shaft having two pairs of selectively contoured camming means thereon that are engageable by radially displaceable shift pin means extending into the pedal hub to effect longitudinal displacement of said collar on said collar on the drive pedal shaft and accompanying shifting of the gears in response thereto.

341710

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