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Dirt Bike Brands - Other
White Bros XR4 Rev Kit
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[QUOTE="mtngoat, post: 107834, member: 18818"] [b]Sorry, bad prior post[/b] Oops, sorry to controvert my last post, but I received more info and talked with Gary Jones in White Bros. R&D and I'm getting a different and IMO a more accurate assessment of the kit. Gary did R&D on this kit and played with different curves. He says the modified curve isn't that different and this kit is more about extending rev limits than changing curves. To take full advantage of the rev limit really requires a cam change to enable breathing at higher RPMs. He doesn't recommend it for a stock engine. Personally, I want more low and mid-range performance for my riding. This won't help me there. This really "syncs" with Ol89r's experience. [/QUOTE]
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Dirt Bike Discussions By Brand
Dirt Bike Brands - Other
White Bros XR4 Rev Kit
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