2009–2016 Honda CRF450R 100mm Big Bore Cylinder Kit Complete Top End Rebuild Package

📖 Product Description

Transform your Honda CRF450R into a harder-hitting, race-ready machine with this complete 100mm Big Bore Cylinder Kit. Featuring a brand-new nikasil-plated cylinder, forged JE Pro Series piston, BPRATV heavy duty cam chain, Talon titanium head studs, and Cometic MLS gasket set, this top-end rebuild package delivers exceptional reliability and increased horsepower without compromising durability. Perfect for riders who demand more torque, stronger mid-range, and improved overall engine performance.

🔥 Key Features & Benefits

Every component in this kit is engineered for strength, longevity, and premium performance—ideal for racing, aggressive riding, or freshening up a worn top end.

• 100mm nikasil big bore cylinder with a 1-year warranty
• JE 12.5:1 forged Pro Series piston kit for maximum power and strength
• BPRATV heavy duty OEM-replacement cam chain included
• Talon titanium head studs with a lifetime warranty for superior clamping force
• Cometic 100mm MLS gasket kit plus Viton valve stem seals for perfect sealing

✅ Compatibility

This complete top-end rebuild kit fits all 2009–2016 Honda CRF450R models.

• Honda CRF450R (2009–2016)
• Direct replacement for OEM top-end components
• Perfect for racing, rebuilds, or performance upgrades
• Compatible with stock and aftermarket exhaust systems
• Designed for maximum reliability and horsepower gains

❓ Frequently Asked Questions (FAQ)

• Q: Does this kit increase displacement?

  A: Yes. The 100mm cylinder increases displacement and provides stronger power across the entire RPM range.

• Q: Is machining required to install this kit?

  A: No. This big bore cylinder is a direct bolt-on upgrade for 2009–2016 CRF450R models.

• Q: Do I need to upgrade my valve train?

  A: No additional upgrades are required. This kit works with OEM top-end components when installed correctly.

• Q: Are all gaskets and seals included?

  A: Yes. The kit includes a full Cometic MLS big bore top-end gasket set and Viton valve seals.

🌟 Why Buy from BPRATV? Trusted Performance Experts 🌟

At BPRATV, our promise is unwavering: The Best Parts. The Best Performance. The Best Price. Every top-end kit we offer is built for riders who expect unmatched durability, precision, and power. Trust BPRATV to keep your Honda CRF450R running at its absolute best, every single time.

Upgrade your CRF450R with race-proven power — order your 100mm Big Bore Kit today!

BPRATV - The Best Parts. The Best Performance. The Best Price.

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© BPRATV LLC 1-year limited warranty from the manufacturer for material or workmanship defects.*

Due to the nature of high performance and racing applications, BPRATV LLC components are sold without express warranty or any implied warranty of merchantability or fitness for a specific purpose. BPRATV LLC shall not, under any circumstances, be liable for any specific, incidental or consequential damages, including, but not limited to, damage, or loss of property or equipment, loss of profits or revenue(s), cost of purchased or replacement goods, or claims of customers of the purpose, which may arise and/or shall result from sale, installation or use of these parts. Installation of these parts may void vehicle manufacturers warranty coverage and/or may cause the vehicle to be illegal in some locations.

This product is exempt from the emission standards and related requirements of 40 C.F.R. § 1051 as provided by 40 C.F.R. § 1051.620, and California law [e.g., vehicle code §§ 27156 and 38391]. This product is sold only for use in connection with EPA-certified, purpose-built, nonroad vehicles used solely for closed-course, nonroad competition/racing and not used for any recreational purpose or on public highways or right of ways maintained by and open to the public.