Piston kit replica big bore - diameter choice. Piston Kit Big Bore XL ø 99.00 +2.00 - 23655c reference: 09102577 - 23655c brand: vertex.This product is compatible with. Yamaha YZ 450 f 450cm3 (2010; 2011; 2012; 2013; 2014; 2015). The item \crankshafts, connecting rods. \The seller is \This article can be shipped worldwide.