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Old 12-02-2008, 07:03 AM
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Motorized Bicycle Elite Member
Join Date: Sep 2008
Location: Fl.
Posts: 352
Default Re: Your opinion on top speed/RPMs

I recently experimented with my shift kit. I found that I could fit 2 of my old 3 speed front sprockets to the shift kit, which both are more teeth than the one supplied with the kit. My intentions were just to slow the engine to cruise. The big sprocket, I tried first would let me go over 30 mph in first gear with 4 more to go. I couldn't go over 35 mph in any gear. 5th gear would only maintain about 33-35, but wouldn't accelerate. I could only just maintain what speed I reached with the first 4 gears. Just not enough hp to go much more than 35 mph. It's all flat ground here.
I used the smaller sprocket (don't know how many teeth) but it's bigger than the one with the shift kit. It works perfect. It allows me to use the torque zone of the engine (maybe 2000-4000 rpm) to cruise at 25-35 mph. With the 5 speed, it may work good on hills also.
Any one know where I can get a tach for this engine?
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