Piston Kit - Yamaha YZ 250 ('88-'98) / WR 250 ('88-'97) - 250 2-Stroke - ProX

Please select the piston size from the box above.

ProX piston kit for Yamaha YZ 250 (1988-1998) / WR 250 (1988-1997) - 250cc 2T. The complete application list can be found below.

Technical specifications:
- standard cylinder diameter (factory diameter): 68.00 mm
- engine type: 2-stroke
- total piston length (B): 75.00 mm
- piston pin diameter (C): 18.00 mm
- compression height (D): 27.00 mm
- ring pin position measured from center (E): 14.50 mm
- ring pin position measured from center (F): 14.50 mm
- internal distance of piston pin (G): 23.00 mm
- piston head shape: domed
- other information: -
- manufacturing technology: cast piston coated with molybdenum disulfide (MoS2)

Available piston sizes (A):
- B (67.95 mm)
- C (67.96 mm)
- D (67.97 mm)
- +0.50mm (68.50 mm)
- +1.00mm (69.00 mm)
- +1.50mm (69.50 mm)