CYLINDER FULL KIT CRF 250 R 18-24, 85MM, ATHENA P400210100067 289CC BIG BORE, (Piston included)
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Athena Big Bore Cylinder Kit, 85 mm bore diameter, 289 cc displacement. Athena has invested in cylinder aftermarket replacement parts for over ten years, with R&D in Italy using cutting-edge tools. Cylinders are coated with motor-nicksil, a nickel-silicon coating developed by Athena for smoothness and wear resistance. Athena cylinder kits are recognized worldwide for performance, durability, and reliability. This Big Bore Cylinder Kit guarantees an increase in performance along the power curve while maintaining the reliability of original components. The kit includes a high-quality aluminum cylinder with increased bore, a complete piston with pin and rings, and all necessary gaskets. All kit components are developed to withstand high temperatures, pressures, and stresses, validated by Athena technicians through rigorous bench and road tests. This cylinder kit can be installed without engine crankcase modifications. Technical features: Bore Diameter 85.00 mm, Bore Gain + 6 mm, Compression Ratio 13.7:1, Displacement 289 cc, Net Weight 1.67 Kg. Includes Piston.
- SKU
- 56-K197.85_BB.ATH
- Brand
- Athena
- Availability
- In Stock (1)
Fitments (6)
| Make | Model | Year |
|---|---|---|
| HONDA | CRF 250R | 2018 |
| HONDA | CRF 250R | 2019 |
| HONDA | CRF 250R | 2020 |
| HONDA | CRF 250R | 2021 |
| HONDA | CRF 250R | 2022 |
| HONDA | CRF 250RX | 2019 |
- General Product Group
- Engine
- General Product Type
- Cylinder Kits
- Variant Id
- 290962
FULL DESCRIPTION
Athena Big Bore Cylinder Kit for CRF 250 R/RX 2018-2024 (85mm, 289cc)
Upgrade your motorcycle's performance with this Athena Big Bore Cylinder Kit. Engineered and designed in Italy by Athena's dedicated R&D department, this kit is built to enhance power and durability.
Featuring a precisely machined 85mm bore, this kit increases displacement to 289cc, delivering a noticeable boost in performance across the power curve while maintaining the reliability of original components. The cylinder is coated with Athena's proprietary motor-nicksil, a nickel-silicon coating known for its exceptional smoothness and resistance to wear.
This comprehensive kit includes:
- High-quality aluminum cylinder with an increased bore diameter of 85mm.
- A complete piston assembly, including the piston pin and rings.
- All necessary gaskets for a complete installation.
Each component has undergone rigorous testing by Athena technicians to ensure it can withstand high temperatures, pressures, and stresses, validating its performance and reliability on both the bench and the road. This big bore kit can be installed without requiring modifications to the engine crankcase.
Key Technical Features:
- Bore Diameter: 85.00 mm
- Bore Gain: + 6 mm
- Compression Ratio: 13.7:1
- Displacement: 289 cc
- Net Weight: 1.67 Kg
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