CYLINDER WORKS ΚΥΛΙΝΔΡΟΠΙΣΤΟΝΑ ΚΟΜΠΛΕ BORE 77mm STD ΓΙΑ YAMAHA YZF 250 2014-2015 / WR 250 F 2015-2016, 20010-K01Description: Standard Bore Cylinder Kit. 13.5:1 comp. 77mm. Includes (Cylinder, Piston Kit and Top End Gasket Kit). Uses Vertex Piston. For Models: 2015 - 2016 Yamaha WR 2..