Wiseco Piston Kit Standard Bore 77.00mm - 13.5:1 Compression - 4858M07700 | Yamaha YZ250F 2001-2004
$402.99
Wiseco Piston Kit Standard Bore 77.00mm - 13.5:1 Compression - 4858M07700 | Yamaha YZ250F 2001-2004 Item # 186867
Description
Features:
- Forged from high-silicon aluminum alloy for maximum strength and dependability.
- Innovative forging design and piston skirt provide maximum horsepower and torque.
- Wiseco High-Performance piston kits are priced with piston, rings, pins and circlips (unless noted otherwise).
- Oversize pistons require cylinder sleeving.
Specifications:
- Displacement: 249cc
- Bore - Standard: 77.00mm
- Bore - Actual: 77.00mm
- Bore - Oversize: STD
- Stroke: 53.6mm
- Compression Ratio - Actual: 13.5:1
- Skirt Coating: Moly
- Note: Nikasil Bore
- Note: Lateral Gas Ported
- Note: RACE USE ONLY
- Note: 2-ring
Item Contents:
- 7700YC - 77.00 mm Ring Set .8 x 1.5mm
- CW16 - ROUND WIRE PIN LOCKS 16MM (PAIR)
- S742 - PistonPin 16 x 41.91mm NonChromed SW