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Old 10-28-2017, 09:12 AM
Moto7man Moto7man is offline
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Join Date: Aug 2011
Location: Murfreesboro,Tennessee
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Quote:
Originally Posted by Zman View Post
When I had my 300 big bore kit built I was told the GG cylinders were a close copy of the early 1990s CR250 Cylinder. Which is probably why the power valve assembly is the same.

You can pretty easily move the GG power curve up the RPM range to act like the CR250 if that is what you are looking for.
I am happy with CR as it is now and I am very impressed with the power.
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2011 GG EC 300E, 1994 CR 250R, 1984 RM 250 E, 2022 Ranger 300

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