Wiseco 857M06640 Piston Kit - Standard Bore 66.35mm

Bore: 66.35mm
Compression: Standard Compression
Sizing: Standard Bore

SPECIFICATIONS.
Displacement: 249cc.
Bore - Standard: 66.4mm.
Bore - Actual: 66.40mm.
Bore - Oversize: STD.
Stroke: 72.00mm.
ITEM CONTENTS.
2614CD - 66.40 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:

2000-2005 KTM 250 EXC
2000-2003 KTM 250 MXC