Cardinal Racing big bore cylinder block kits come with all the parts you need to upgrade, and are ready to use out of the box. Ideal for street and light racing applications. Comes with a forged piston for longer durability.
This updated cylinder block kit has extra large cooling jackets for more reliability. Made of a ceramic alloy material with a low friction coating on the cylinder surface. It is not recommended to bore up further.
Piston rings and circlip
Piston wrist pin
Metal head gasket included
V1/V2 Yamaha R15/YZF-R125/MT-15/MT-125/WR125
For some Yamaha 2014 and newer model will need to reuse the cam chain tensioner from the T135/older models.