UMA Racing 63mm (183cc) Big Bore Cylinder Kit - Yamaha R15v3 VVA

UMA racing big bore cylinder kits are plug and play ready for your machine, built to standards exceeding the manufacturers for worry free use, on the street or track. Ceramic block material will withstand higher engine temperatures. Available with forged, flat or high compression pistons.

This performance big bore kit will increase your engine displacement up to 183cc with the stock crankshaft stroke! We may have stroker kits also available for this model. We recommend you to upgrade your exhaust, fuel injector, throttle body, camshafts, ECU, cylinder head for supporting mods.

Available with dome/normal piston

Includes:

• Racing cylinder block
• Piston
• Piston ring set and circlip
• Piston wrist pin
• Gaskets

 

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Fitting:

Yamaha YZF-R15 V3/XSR155/MT-15 (VVA)

Yamaha YZF-R125/MT-125 (VVA)

Yamaha Tricity 125 155 (VVA)

Build quaility similar to Malossi, Polini, Athena, Kawahara, etc big bore cylinder kits.