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MX, SX & Off-Road Discussions
Dirt Bike Mods & Maintenance
99 KX 144 test (Eric Gorr vs. RPM)
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[QUOTE="NO HAND, post: 248429, member: 18937"] You have the option to bore it to 133 or 144. The 133 is still ama legal in the 125 modified class. The 144 piston is availlabble from Eric and he's got killer prices, the 133 is availlable at the dealer and it's like the last oversize piston from the old Wiseco system (P8). 56mm instead of 54. There is no replacement for displacement...:cool: For more info, you might want to check out his website. the link is on the side, Forward Motion. Or call him! [/QUOTE]
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MX, SX & Off-Road Discussions
Dirt Bike Mods & Maintenance
99 KX 144 test (Eric Gorr vs. RPM)
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