Vertex pistons are made from cast aluminium (not forged) with an 18-20% silicone content which gives you a light but strong piston. Piston skirts are bisulphide coated for faster break-in time and increased piston life. All pistons are heat treated with T-5 hardening and tempering cycle. Race proven by Ricky Carmicheal and Pro Circuit
Piston kit contains piston, piston rings, gudgeon pin and circlips.
- Compression Ratio 13.9/12.8
- Displacement 270 cc
- Piston Diameter 80.980mm
- Size Over Standard +3.0mm
250 SX-F (13-15); 250 XC-F (13-15); 250 XCF-W (14-16);
FC 250 (14-15); FE 250 (16); FE 250 (14-15)