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Old 09-14-2009, 01:29 PM
nubikeshop nubikeshop is offline
Motorized Bicycle Newbie
Join Date: Aug 2009
Location: In Virginia
Posts: 5
Default Chain ring upgrade-- Is it safe?

Hey all. A build of mine has a 68.5cc with a 44 tooth rear chain ring. Gets above 30 easily, max of 39 downhill. I was curious if it would be safe to upgrade to a 36 or lower tooth chain ring. It would be cool to get some extra speed out of this thing, but would I be seriously compromising safety, structural integrity, ability to start easily, etc...?

Thanks everyone
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