The Profile Slack Cam Ring-20-33-45 Degrees at J&R Bicycles is a fundamental component in the Z Coaster freecoaster hub system made by Profile Racing. The Slack Cam Ring sets how much slack or “free pedal” is needed to engage and disengage the freecoaster mechanism. Left- and Right-Hand Drive options are available.
Specifications:
- 20/33/45 Degrees (45 degrees = 1/8 of a crank)
- WEIGHT: 0.2 lbs
- DIMENSIONS: 6 × 4 × 1 in
- DRIVE SIDE: LHD, RHD