Seller notes

TB 170cc Big Bore Kit – KLX140TBparts 170cc Big Bore Kit will make your KLX140 a lot more fun to ride by adding some much needed power. This kit does not require boring of the case – simply bolt on and go!!This Big Bore Performance Kit features the following:– Aluminum cylinder with steel sleeve (63mm)– High compression 63mm piston with rings, pin, & clips (Safe on 91+ Octane Pump Fuel)– Top end gasket kitThere are no installation instructions, but if you can replace your piston, you c...

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