Wiseco 4731M09700 Piston Kit - 2.00mm Oversize to 98.92mm, 11:1 Compression

Bore: 98.92mm
Compression: 11:1 Compression
Sizing: Standard Bore

SPECIFICATIONS.
Displacement: 521cc.
Bore - Standard: 95.00mm.
Bore - Actual: 97.00mm.
Bore - Oversize: 2.00mm.
Stroke: 72.00mm.
Compression Ratio - Actual: 11:1.
Note: Cylinder boring required.
Note: Cylinder replating required.
ITEM CONTENTS.
9700ZS - 97.00 mm Ring Set.
CW20 - ROUND WIRE PIN LOCKS 20MM (PAIR).
S641 - PistonPin 20mm x 1.986in. NonChromed SW

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:

2000-2002 KTM 520 EXC
2000-2002 KTM 520 SX
2003-2006 KTM 525 EXC
2003-2006 KTM 525 SX
2008-2010 KTM 525 XC
2007 Polaris Outlaw 525 IRS