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USA
- USA
- CAN
- USA
- CAN
Ships within 48 hours · Estimated delivery Jun 15 - Jun 20
For Your Every Summer RSVP, with Code: SUMMER15
Description
Cylinder Works 21-23 Honda CRF 450 R 450cc Standard Bore Cylinder KitOEM style standard bore kits include a cast aluminum Cylinder Works cylinder, Vertex Piston and gaskets needed to restore horsepower and performance, as a competitive price point, compared to OEM options. Nickel silicon carbide (NSC) electroplate bore which allows for tighter tolerances, lower friction and extreme durability Precision diamoned honed to exact dimensions and proper surface finish to ensure ring seal and oil retention


Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.6 ★★★★★
Based on 1245 reviews
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Product Reviews
★★★★★ 5
Exact match for a 2018 Challenger
Exact match for 2018 Challenger. Removed the old filter located passenger side under the hood. Replaced the old with the new took literally two minutes. Now I have fresh clean and they close through my vents with no smell.
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Reviewed in the United States on February 17, 2026
★★★★★ 5
Good quality
Works great! Good quality and price!
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Reviewed in the United States on November 20, 2025
★★★★★ 5
Perfect fit
Perfect fit for my Accord
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Reviewed in the United States on February 15, 2026
★★★★★ 4
That it filters out debris in the air from going into the engine / cabin
It’s an air filter seems to be doing what it is designed for
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Reviewed in the United States on March 9, 2026
★★★★★ 5
Wonderful
Excellent
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Reviewed in the United States on January 15, 2026




