Description
Bore: 67.56mm
Compression: Standard Compression
Sizing: 0.60mm Oversize
SPECIFICATIONS.
Displacement: 254cc.
Bore – Standard: 66.40mm.
Bore – Actual: 67.00mm.
Bore – Oversize: 0.60mm.
Stroke: 72.00mm.
Cylinders: 1.
Skirt Coating: ArmorGlide.
Note: Pro-Lite.
Note: Cylinder sleeving required.
Note: Ceramic Composite Bore.
Note: Cylinder replating required.
ITEM CONTENTS.
2638CD – 67.00 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:
1999-2024 Yamaha YZ250
2022 Yamaha YZ250 Monster Energy Yamaha Racing Edition
2016-2024 Yamaha YZ250X
