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:
- Most parts ship next business day
- Modquad parts: Monday–Thursday dispatch
Made-to-Order Items:
- Custom swingarms & A-arms: 2–4 weeks
- EVP exhaust systems: 2–4 weeks
Stock Guarantee: Items marked "In Stock" ship immediately. Made-to-order items are built fresh for you.
Questions? Contact us—we respond within 24 hours.
