Wiseco 4045M08750 4045M08750; Piston M08750 Xt / Tt / Sr500

Bore: 87.91mm

SPECIFICATIONS. Displacement: 502cc. Bore - Standard: 87.00mm. Bore - Actual: 87.50mm. Bore - Oversize: 0.50mm. Stroke: 84.00mm. Compression Ratio - Actual: 10:1. Note: Cylinder boring required. ITEM CONTENTS. 3445XC - 87.50 mm Ring Set. CW20 - ROUND WIRE PIN LOCKS 20MM (PAIR). S553 - PistonPin 20mm x 2.185in. 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:
1976-1981 fits YAM TT500
1976-1981 fits YAM XT500