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Old 04-25-2013, 07:33 PM   #14385
Bob Herr
Oilpatch Univ. Graduate
 
Joined: Aug 2009
Location: Mt. Vernon,IL
Oddometer: 266
42tooth rear sprocket

Quote:
Originally Posted by Silent Hunter View Post
Guys, I just changed the sprockets of my DR big to 16 front, 42 back.
The power is amazing. I was going 100km/hr at barely 3,500 RPMs.

Previously on 15 front, 45 back, the bike needs to go up to 4,000 RPMs to match that speed.
Yeah. Check out my post 14326. I just made this mod recently and really like the result. I kept the 15 tooth front and motor is turning 3600 RPM at 100K/hr. Looks like the 16 tooth front gives you an additional 100 RPM drop.
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