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Dirt Bike Discussions By Brand
Yamaha MX & Off-Road Dirt Bikes
250f mod options
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[QUOTE="bashn, post: 141176, member: 20847"] I just installed Gorr's 2mm overbore kit in my YZ. I think it's legal for the 125 modified class. It's less expensive than most pipes and adds about the same amount of power. I can feel it mostly in the low to mid RPM levels. Top end seems about the same to me. I can now pull 2nd gear off the starting line on a consistant basis. I can also ride the bike more effectively in a lower RPM range. Overall, I think this is the second best mod after a pipe. '01 YZ267F Yoshimura pipe 49T rear sprocket Mark Mark [/QUOTE]
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Dirt Bike Discussions By Brand
Yamaha MX & Off-Road Dirt Bikes
250f mod options
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