Wiseco 605M06850 Piston Kit - 0.50mm Oversize to 68.95mm

Bore: 68.95mm
Compression: Standard Compression
Sizing: 0.50mm Oversize

SPECIFICATIONS.
Displacement: 251cc.
Bore - Standard: 68.00mm.
Bore - Actual: 68.50mm.
Bore - Oversize: 0.50mm.
Stroke: 68.00mm.
Cylinders: 1.
Note: Pro-Lite.
Note: Power valve must be modified.
ITEM CONTENTS.
2697CD - 68.50 mm Ring Set.
CW18 - ROUND WIRE PIN LOCKS 18MM (PAIR).
S508 - PistonPin 18mm x 2.106in. NonChromed TW

All Wiseco Pistons are forged from high silicon, low expansion aluminum which offers superior strength, reduced weight, improved heat transfer, and longer life. Diamond turned finish from one of the many CNC computer controlled turning centers guarantees you a perfect finish with no size variation. Wiseco pistons can be installed in any of todays cylinder bore compositions. Wisecos state-of-the-art computerized manufacturing facility is dedicated to supplying both the high-perfomance racer and recreational enthusiast with the finest forged piston available in todays market place.

Vehicle Fitment:

1991 Yamaha WR250
1988-1991 Yamaha YZ250