Piston Kit (increased compression) - Yamaha YZ-F250 ('14-'15) / WR 250F ('15-'18) (76.95-76.97mm) - Wossner

Forged piston kit Wossner High Compression for Yamaha YZ-F 250 (2014-2015) / WR 250 F 4T (2015-2018).

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

Please select the piston size from the box above.

Technical specifications:
- cylinder diameter: 77.00mm
- thermal clearance: 0.05mm
- number of rings: 2 (one compression / one oil)
- compression ratio: 14.50:1 (increased compression 14.50:1 compared to 13.50:1 OEM)
- pin-to-cap distance (measured from the center of the pin): 20.50mm
- piston pin dimensions: 16x10x36mm.

Available piston sizes:
- A (76.95mm)
- B (76.96mm)
- C (76.97mm)