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I went with the 17/44 combo for the calculated theoretical top speed- 172 mph @ 11,500 rpm. This was using the measured circumference of my tire- 77 in., and unless you measure your own tire it's a guess. Of course this doesn't allow for tire growth; another guess. I figure with the added power from the new Tune Boy map it might get within a few mph of this. My idea was to gear it for max. acceleration without putting it at the rev limiter if I ever get it on a track or anywhere else that will allow top speed. If you measure your tire you can calculate about where your revs will run in a given gear and a given speed. The primary ratio, individual gear ratios, and final drive ratios are in the service manual. BTW, my motor use to be somewhat soft and piggish between 5000-6000 rpm until the re-map. Now it grunts right along at lower revs; passing from 3800 rpm in 6th, no problem. Whacking the throttle open at anything over 6500 in first will hoist the front wheel easily. I'm totally sold on the Tune Boy!
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"The older I get, the faster I was".
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