4 mm to 24 mm

Main outer material: MaxTex

Waterproof design: Handles all weather conditions without compromising performance

Shell: 100% polyester

High mileage and good behavior in heat and cold

VERTEX Race Evolution Casted Piston 24444C yamaha-yz-250-f--cg39--250-2018-esi5916506 4 mm to 24 mmVertex Race Evolution pistons, New Performance for 2 stroke Offroads, Chosen by Factory MX Teams High precision forged pistonReduced top landNitrided steel ringsExclusive MoS2 coating featured by specific pockets to facilitate cylinder piston smoo Unnamed: 25: C Bore size (mm): 54,00 Diameter (mm): 53,95 Material: Aluminium Oversize: +0,02 Piston compression: Standard Piston type: Coul Rings Quantity: 1 Stroke: 2T