Wiseco 4785M09700 Piston Kit - 2.00mm Oversize to 98.94mm, 12.5:1 Compression

Bore: 98.94mm
Compression: 12.5:1 Compression
Sizing: 2.00mm Oversize

SPECIFICATIONS.
Displacement: 459cc.
Bore - Standard: 95.00mm.
Bore - Actual: 97.00mm.
Bore - Oversize: 2.00mm.
Stroke: 63.40mm.
Cylinders: 1.
Compression Ratio - Actual: 12.5:1.
Skirt Coating: ArmorGlide.
Note: Nikasil Bore.
Note: Cylinder sleeving required.
Note: Cylinder replating required.
ITEM CONTENTS.
3819XS - 97.00 mm Ring Set.
CW18 - ROUND WIRE PIN LOCKS 18MM (PAIR).
S600 - PistonPin 18mm x 1.850in. 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:

2013-2015 Gas Gas EC 450 F
2003-2009 Yamaha WR450F
2011-2015 Yamaha WR450F
2003-2009 Yamaha YZ450F