This CP Pistons single piston is specified for 2005–2013 Yamaha YZ250F applications with a 13.5:1 compression ratio. The kit lists an 80mm bore with +3mm oversize, a 53.6mm stroke and 269cc displacement. It is noted as MTO and not cancellable, supplied as a single piston intended for engine rebuilds or specific bore-up applications on the YZ250F platform.
CP Pistons 05-13 YZ250F 13.5:1 80mm +3mm bore x 53.6mm Stroke 269cc Piston Kit MTO Not Cancellable