Barrel and Piston Big Bore A/C Yamaha Zest,Benelli,Beta Bore Size 47mm

Part Information

Bore Size 47mm for 70cc, includes cylinder head, also head, base and exhaust gaskets. Bigger ports. Carburettor may need rejet to get the best from Kit. *Please note* Increased Performance can put additional strain on aged components. Licensing , Registration and Insurance may be affected (depending on country).