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SKU: RCS08150 | UPC: 00193564176561
Wiseco 81.50mm Black Anodized Piston Ring Compressor Sleeve RCS08150 for 1983-2012 250cc Motocross and ATV Bikes
Wiseco ring compressor sleeves are forged in-house in the USA and deliver precision to compress rings smoothly during high-performance engine builds. Designed for 81.50mm bores on models like Kawasaki KX250 Suzuki RM250 Yamaha YZ250 Honda CR250R and Yamaha Banshee YFZ350 this tool prevents ring damage for tight seals and dependable power. Black anodized finish adds durability for repeated professional use.
Key Features
- Forged Construction: Made from 6061-T6 aluminum for high strength and resistance to deformation under pressure
- Black Anodized Finish: Provides corrosion protection and smooth surface to avoid scratching cylinder walls
- Precision Sizing: 81.50mm (3.212 inch) outer diameter ensures exact fit in cylinder bores without play
- Slotted Design: Evenly compresses rings as piston slides in reducing risk of flare or breakage
- USA Made: In-house manufacturing guarantees tight tolerances for consistent results in every build
Product Notes
- Verify cylinder bore measures exactly 81.50mm before use
- Pair with assembly lube on rings for easiest insertion
- Compact 3.3 x 3.3 x 1 inch size stores easily in any toolbox
Installation Notes
- Professional installation recommended.
- Lightly coat inner sleeve and rings with engine assembly lube prior to sliding piston in
- Works with standard Wiseco oversized piston kits for listed fitments
This Part Fits
| Year | Make | Model | Submodel |
|---|---|---|---|
| 1987-1996 | Kawasaki | KX250 | All |
| 1996-2008 | Suzuki | RM250 | All |
| 1988-2005 | Yamaha | YZ250 | All |
| 1983-1991 | Honda | CR250R | All |
| 1987-2012 | Yamaha | Banshee YFZ350 | All |
Why Choose Wiseco?
- Proven reliability in professional motocross and powersports racing
- Every component forged and machined under one roof for flawless quality
- Engineering focused on high-rpm durability and exact tolerances
Frequently Asked Questions
-
Q: What cylinder bore size does this sleeve fit?
A: Built for 81.50mm (3.212 inches) bores common in 250cc two-stroke motocross and ATV engines like those listed in fitment. -
Q: What material and finish are used?
A: Forged 6061-T6 aluminum with black hard anodizing for wear resistance and long-term protection. -
Q: Is special installation equipment required?
A: No uses standard procedures tap gently with rubber mallet if needed and works with any ring expander tool.
Shipping & Handling
- Method: UPS Ground or USPS Priority Mail
- Availability: In stock - ships same or next business day
- Packaging: Protective sleeve in 4 x 4 x 2 inch cardboard box
- Weight: 0.35 lbs
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