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keeping your riding area more neighborhood friendly
you can bring up to +20% to +30% more power (varies for different build specs) through the entire rpm range and an increased RPM limit with top-end power that keeps pulling strong
Note: This kit should be installed by a professional mechanic or shop that offers valve job service as the valve seats must be cut to accept the larger valve head diameters and valves sunk deeper to allow for overlap clearances
dished flange-head bolts replace the button head allen bolts of the old design
Octagonal-shaped large volume muffler housing means more power and better sound
TB Seal and Gasket Kit, Complete – 60mm Size:60mm Bore keeping your riding area moreTB Seal and Gasket Kit, Complete 60mm This is a complete seal and gasket kit for engines with a 143cc (60mm) bit bore kit installed. Includes: All gaskets, including the exhaust gasket All Oil Seals All O Rings Valve Seals OEM quality and a much better price!!
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