Piston kit (increased compression) - Yamaha YZ 450F / WR 450F ('06-'09) / Gas Gas EC450 F ('13-'16) (94.96-94.98mm) - Wossner

Forged piston kit Wossner High Compression for Yamaha YZ 450F / WR 450 F (2006-2009) / Gas Gas EC450 F (2013-2016).

The kit includes piston, rings, pin, and clips.

Please select the piston size from the box above.

Technical specifications:
- cylinder diameter: 95.00mm
- thermal clearance: 0.04mm
- number of rings: 2 (one compression / one oil)
- compression ratio: 13.50:1 (increased compression 13.50:1 compared to 12.30:1 OEM)
- pin-to-cap distance (measured from the center of the pin): 23.50mm
- piston pin dimensions: 18x9x51mm.

Available piston sizes:
- A (94.96mm)
- B (94.97mm)
- C (94.98mm)