Profile Z-Coaster slack cam ring

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the Slack Cam Ring is one of the key components in the Profile Z Coaster® hub. It determines the amount of “slack” or “free pedal” needed to engage/disengage the freecoaster mechan ism 20 / 33 / 45 Degrees (45 degrees = 1/8 of a crank)60 Degrees (1/6 of a crank)75 Degrees (1/5 of a crank)90 Degrees (1/4 of a crank)115 Degrees (1/3 of a crank) RHD or LHD specific, so be sure to order correct drive side Show more