Wiseco Piston Kit Yamaha YZ85 2002-2021 5.50mm Oversize 767M05250
Part Number: 09100366WISECO
- SKU:
- 09100366
- MPN:
- 767M05250
- Condition:
- New
- Availability:
- Ships Same Business Day
- Weight:
- 0.25 LBS
Description
If you're running a Yamaha YZ85 hard—whether on the track or in practice—piston wear directly impacts power delivery and reliability. The Wiseco 767M05250 is engineered to restore lost compression and add measurable performance gains while handling the thermal stress of 2-stroke racing. This 5.50mm oversize kit is the proven choice for riders who demand durability without compromise.
Wiseco's proprietary alloy composition resists scuffing and maintains tight tolerances across extended riding sessions. The low-friction skirt coating reduces drag on the cylinder wall, translating to sharper throttle response and improved fuel efficiency. Whether you're rebuilding after a seized motor or upgrading for competition, this piston kit delivers the consistency that separates competitive riders from the rest.
- Fitment: Yamaha YZ85 (2002-2021), 5.50mm oversize
- MPN: 767M05250
- Material: High-silicon alloy
- Piston Design: 2-stroke specific
- Skirt Coating: Low-friction
- Heat Resistance: 2-stroke optimized
- Installation: Requires basic engine work
- OEM Replacement: Yes, direct fit
Specs
BORE - OVERSIZE METRIC: |
+5.50 MM |
DISPLACEMENT: |
103,5 CC |
STROKE LENGTH METRIC: |
47.80 MM |
PISTON MATERIAL: |
FORGED |
RIDING STYLE: |
OFF-ROAD |
BORE SIZE METRIC: |
52.50 MM |
ENGINE TYPE: |
2-STROKE |
UNITS: |
EACH |
BORE - OVERSIZE: |
+5,50 MM |
PISTON MATERIAL: |
ALUMINUM ALLOY |
PRODUCT NAME: |
PISTON |
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