Originally Posted by doug s.
regardless of how much the engine is working, (i suspect it is actually working more
- making more hp at any given engine speed), it's still turning the same rpm's to get the wheels turning their
rpm's... math is math...
now, because the engine is making more power at any given rpm, you could put a 41t sprocket on the rear (or a larger diameter tire) and lower your engine rpm's at any given mph, and the bike will still pull hard... you are already running 17-42; did i read that correctly?
Yes I have a 17-42 set up. I went to that because when I went to a lower profile tire, my rpms jumped up.