I know Wizard and Zook will jump on me if there is already a similar thread out there, but here goes anyway.
I am trashing my JIMS 6-speed (sorry JIMS...can't stand the noise any longer) and replacing it with my stock HD 5-speed. The stock pulley (32-tooth) with my wheel/tire set-up runs around 3250 at 70 in 5th. gear, or around 150 RPM higher than the stock 2-wheeler 5-speed set up. From the math I did, replacing the 32 with a 34 will give me a reduction in RPM by around 6% or 200 or so. I realize it changes the ratio across all 5 gears, but this JIMS had a 3.24 first gear anyway, which I always thought was too tall. Using the 34 should pull that down to around 3. Stock is 2.94. All this would result in a .94 "overdrive" as opposed to the stock 1:1 in 5th.
Has anyone "played" with this 34-tooth change and if so, what results did you achieve? I can't easily change my rear pulley without ripping-out the differential....again and it's a stock 70-tooth.
I have simply had it with any 6-speed and I don't care who makes it. I have ran every fluid except banana peels (old used car salesman trick) in this JIMS and it won't shut-up.