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Old 07-11-2014, 12:42 AM
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Davezilla Davezilla is offline
Motorized Bicycle Elite Member
Join Date: Mar 2014
Location: San Antonio Texas
Posts: 2,710
Default Re: three wheeler engine on a motorized bicycle

I remember those small multi cylinder race engines... little screamers but they did have a narrow powerband hence the 9 speed transmissions... I've heard of some road race bikes (mainly rotary valved 2 strokers) having as many as 20 gears to compensate for very narrow powerbands until the rules were changed limiting the number of gears to 6, that's when the engineers had to figure a way to get a wider powerband without losing all that power these engines made on the top end
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