Wiseco 559M05700 Piston Kit - 1.00mm Oversize to 57.95mm

Bore: 57.95mm

SPECIFICATIONS. Displacement: 128cc. Bore - Standard: 56.00mm. Bore - Actual: 57.00mm. Bore - Oversize: 1.00mm. Stroke: 50.00mm. Cylinders: 1. Note: Pro-Lite. Note: Power replacement valve must be modified. ITEM CONTENTS. 2244CS - 57.00 mm Ring. CW16 - ROUND WIRE PIN LOCKS 16MM (PAIR). S514 - PistonPin 16mm x 1.752in. 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.

This item fits the following vehicle applications:
1986-1988 fits YAM YZ125