Quote:
Originally Posted by almightybmw
I seen lots of people with fixies with 2 gears, a coaster and a fixed on each side of the rear wheel. How hard would it be to have that coaster gear design setup with a chain to a motor? pretty easy I think. Find some guys who know their stuff, especially those fixie guys, they're the craziest.
Find a bike with 7-8 gears, make it a 5-6. install the coaster gear on the other side. No impossible, they make hubs and axles designed for that.
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i looked into using my flip flop hub this way.
the problem is that my legs are effecient up to 100 rpm, most cheap/free electric motors seem to be 2,500 to 4,000 rpm so by the time you have enough gear reductions to match rpms, the mechanical losses are to big to be worth the trouble.