Cylinder Works 02-08 CRF 450 R Standard Bore Cylinder
The Cylinder Works 02-08 CRF 450 R Standard Bore Cylinder is made to restore lost power on your Honda CRF450R. It replaces a worn or damaged cylinder with a factory-size bore. The part fits like stock and works with OEM pistons. You get strong compression, smooth throttle, and reliable starts again.
Product Specifications
Fitment: Honda CRF450R 2002–2008
Bore Type: Standard bore
Material: Aluminum casting
Coating: Nickel-silicon carbide plated
Use: OEM piston compatible
Compatibility: Works with OEM pistons and gaskets
Construction: Precision-cast and finished
Features at a glance
Direct replacement for 02–08 CRF450R
Standard bore, factory compression
Precision honed finish
Strong heat-resistant plating
Correct port and coolant design
Bolt-on installation
Why Riders Choose this Cylinder
Built to Match OEM Size
Standard bore size, no overbore needed
Works with stock piston and rings
Keeps the engine feeling close to factory
Benefit: You repair the top end without changing the bike’s character.
Ready to Install
Comes fully machined and honed
No extra cylinder work required
Direct bolt-on for 2002–2008 CRF450R
Benefit: Less shop time and faster rebuild.
Durable Nickel-Silicon Coating
Hardened plated cylinder wall
Resists heat and wear
Holds oil film better
Benefit: Longer life between rebuilds.
Strong Casting Design
Matches OEM port layout
Correct water jacket flow
Precise deck height
Benefit: Engine runs cool and smooth on long motos.
Real-Life Results
Most riders notice the difference on the first ride. Cold starts get easier. The bike pulls clean from low rpm. A tired engine often feels lazy and loud. After this cylinder, the same bike feels tight again. Throttle becomes crisp. Power comes back where it used to live.One weekend rider rebuilt his 2005 CRF450R after low compression. He used this cylinder with a stock piston. The bike fired on the second kick. He said it felt like the day he bought it. That is the goal of this part.
Who is this for
Riders with worn stock cylinders
Mechanics doing a full top-end rebuild
Racers who want OEM feel, not big bore
Owners keep the bike for many more seasons
If your bike smokes, uses oil, or loses snap, this cylinder is the right fix.
Installation Notes
Use new gaskets and fresh coolant. Check piston and ring condition. Follow factory torque specs. A clean break-in helps the plating seat correctly. Change oil after the first ride.
Frequently Asked Questions (FAQs)
1. Does this fit all CRF450R from 2002 to 2008?
Yes. It is made for every CRF450R model year from 2002 through 2008.
2. Do I need a special piston?
No. The cylinder works with OEM-size pistons and rings.
3. Is machine work required before installation?
No. The cylinder comes ready to install with a finished hone.
4. Is this a big-bore kit?
No. It is standard bore to keep factory power delivery.
5. Will it help low compression issues?
Yes. A new cylinder restores sealing and compression.
6. Can I use my stock head and valves?
Yes. It matches the stock head design.
7. Is a break-in needed?
Yes. Follow normal break-in and oil change steps.The Cylinder Works 02-08 CRF 450 R Standard Bore Cylinder gives you a true factory-feel rebuild. It fixes wear without changing the soul of the bike. You get reliable starts, smooth power, and confidence on every ride. For riders who want their Honda to feel new again, this cylinder is the simple and smart choice.
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