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MX, SX & Off-Road Discussions
Dirt Bike Mods & Maintenance
KX 125 going big!!
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[QUOTE="CagivaWMX, post: 1133109, member: 30201"] A 144 is the cheapest big bore kit upgrade. The myth of the 139 is that it makes more power than a 144. The fact is that was started by Rick Petersen and Max Power. The only thing a 139 makes over a 144 is more profit for Max Power. The 144 pistons are affordable and a catalog part through Wiseco. Max Power's 139 piston is over $200 and you can only buy it them. The Wiseco equivalent to the 144 piston sold by Eric is 846MO5800 and you can buy them from any Wiseco or Parts Unlimited dealer. [/QUOTE]
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MX, SX & Off-Road Discussions
Dirt Bike Mods & Maintenance
KX 125 going big!!
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