Athena 85mm Big Bore Cylinder Kit – Honda CRF250R / CRF250RX (2018-2024)
- Ships next business day
- 30-day hassle-free returns
- Call us: 541-668-7503
- Secure checkout — Pay in 4 available
✓ Fits:
- 2018-2024 Honda CRF250R
- 2018-2024 Honda CRF250RX
✓ Features:
- Athena Cylinder (85 mm bore) – Nikasil-plated aluminum for superior cooling and wear resistance
- Pre-matched components for perfect clearance and reduced engine noise
- Direct bolt-on installation — no machining required
- For closed-course competition use only (not legal for street or public-land use in California)
- Genuine Athena product with limited manufacturer warranty
- Nikasil coating extends cylinder life and reduces friction
- Increases displacement and compression for improved power delivery
✓ What's Included:
- Vertex Forged Piston Kit (13.7 : 1) – rings, pin & circlips included
- Complete Top-End Gasket Set for precise sealing and easy installation
Ships fast from DuneGoonShop!
📦 Shipping Information
In-stock items ship next business day. ModQuad parts dispatch Monday through Thursday.
Made-to-order and custom powder coat items show their lead time at the top of this page, right next to the truck icon. These are built fresh for you, so timing varies by brand and current backlog.
Need something by a specific date? Call us at 541-668-7503 before ordering and we will check stock and ETA on that exact part. We can often point you to an in-stock alternative from another distributor.
Questions? Contact us, we respond within 24 hours.
