Wiseco
Wiseco 7800YB Piston Ring Set - 78.00mm Bore - Fits Honda CRF250, KTM 250 Sx-F & Kawasaki KX250
Wiseco 7800YB Piston Ring Set - 78.00mm Bore - Fits Honda CRF250, KTM 250 Sx-F & Kawasaki KX250
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Restore maximum compression and power to your high-performance 4-stroke with this genuine Wiseco 7800YB Replacement Piston Ring Set. These "YB" series rings are precision-engineered for modern, high-revving engines, featuring a nitrided steel construction that provides an exceptional seal and superior heat resistance.
Features
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Bore Size: 78.00mm.
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Ring Type: YB Series (High-performance 4-stroke ring set).
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Nitrided Steel: Offers reduced friction and increased durability compared to standard cast rings.
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Optimized Sealing: Designed to maintain consistent oil control and cylinder pressure under racing conditions.
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Direct Replacement: The exact replacement for Wiseco pistons found in many 250cc 4-stroke applications.
⚠️ IMPORTANT FITMENT NOTE:
These rings are specifically designed to fit Wiseco-branded pistons ONLY. They are not compatible with OEM (stock) or other aftermarket piston brands. Please verify the 78mm bore size and the part number on your piston before purchasing.
Fitment
This 78.00mm ring set fits Wiseco pistons for the following models:
| Make | Model | Years |
| Honda | CRF250R / CRF250X | 2004 – 2017 |
| KTM | 250 SX-F / XC-F / EXC-F | 2013 – 2015 |
| Kawasaki | KX250 | 2020 – 2022 |
| Husqvarna | FC250 / FE250 | 2014 – 2022 |
Specifications
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Brand: Wiseco
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MPN: 7800YB
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Condition: New in original packaging.
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