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Old 07-14-2012, 02:59 AM
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Ibedayank Ibedayank is offline
Motorized Bicycle Elite Member
Join Date: Oct 2011
Location: Columbia Tennessee
Posts: 1,171
Default Re: Bottom crank jack shaft.

the SBP freewheel is just like a bmx freewheel but it allows you to change the sprockets and in this case run dual sprockets off the same freewheel

when you pedal and only when you pedal does it become one solid unit otherwise just acts like a regular bearing
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