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. For some Yamaha 2014 and newer model will need to reuse the cam chain tensioner from the T135/older models. = 10 - 40 Days (Estimated). The item "Cardinals Racing Big Bore Kit 180cc 62mm Yamaha YZF R15//WR125/WR15/R125/MT15" is in sale since Tuesday, April 30, 2019. This item is in the category "eBay Motors\Parts & Accessories\Motorcycle Parts\Engines & Engine Parts\Other Engines & Engine Parts". The seller is "motogaga" and is located in PJ, Selangor. This item can be shipped worldwide.