Honda CRF250R/RX Athena Stock Bore Cylinder Kit (2018–2019)
Honda CRF250R / CRF250RX Athena 79mm Stock Bore Cylinder Kit – 4-Stroke (2018–2019)
🛠️ Description
Bring your Honda CRF250R or CRF250RX back to peak performance with this Athena Stock Bore Cylinder Kit. Featuring a factory-spec 79mm cylinder, forged piston, and complete gasket set, this kit is engineered for maximum durability, compression, and race-ready power. Perfect for riders who demand OEM reliability with Athena’s performance edge.
✅ What’s Included
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Athena 79mm Nikasil-Coated Cylinder (Stock Bore – 250cc)
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Athena Forged OEM-Style Domed Piston Kit (piston, rings, wrist pin, circlips)
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Athena Top End Gasket Set (all required seals and hardware)
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High-Performance Hard Anodized Power Valves (not compatible with OEM valves)
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All brand-new components in original packaging
📦 Fitment
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Honda CRF250R (2018–2019)
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Honda CRF250RX (2018–2019)
🛡️ Warranty Info
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Backed by Athena’s manufacturer warranty
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Professional installation recommended
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Warranty does not cover failures caused by improper installation, tuning, or break-in procedures
🔑 Key Features
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Stock bore 79mm (250cc) – 13.9:1 compression ratio
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Aluminum cylinder with nickel-carbide coating for longevity
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Ported to Factory Works specifications for improved airflow and performance
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Forged piston kit for race-level durability and strength
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Complete top end gasket set included
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Direct OEM replacement, no head included
📦 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
- Sneakers: 1–2 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.
