CYLINDER WORKS - 11001-K01 - Cylinder Kit - Big Bore - 81.00 mm - Honda
The CYLINDER WORKS 11001-K01 is a big bore cylinder kit sized for 2004-2017 Honda CRF250R and CRF250X models, featuring a nickel silicon carbide cylinder sleeve and matching Vertex pistons to ensure longevity and reduce engine noise with a +3.00 mm overbore and 13.0:1 compression ratio, complete with rings, pin, clips, and gaskets — made in the USA without requiring additional machine work.
Features
- Cylinder kit includes matching Vertex pistons to ensure longevity, performance and reduced engine noise
- Cylinders have a nickel silicon carbide cylinder sleeve
- Look virtually identical to OEM cylinders
- Kit includes cylinder, pistons, rings, pin, clips and gaskets
- Made in the USA
- Cylinder does not require machine work (unless noted).
OEM Part Numbers: 12100-KRN-672, 12100-KRN-730, 12100-KRN-731, 12100-KRN-732
Specs
- Cylinder Diameter: 81.00 mm
- Displacement: 270 cc
- Riding Style: Off-Road
- Color/Finish: Gray
- Engine Type: 4-Cycle
- Overbore: +3.00 mm
- Product Name: Cylinder Kit
- Style: Big Bore
- Units: Kit
- Displacement: 277 cc
- Compression Ratio: 13.0:1
- Cylinder Diameter: 81,00 mm
- Material: Aluminum
- Material: Cast
OEM Part Numbers
- 12100-KRN-672, 12100-KRN-730, 12100-KRN-731, 12100-KRN-732
Frequently Asked Questions - CYLINDER WORKS - 11001-K01 - Cylinder Kit - Big Bore - 81.00 mm - Honda
How do I know if this part fits my vehicle?
Check the fitment information listed on this page against your exact year, make, model, and (where applicable) trim, engine size, or configuration. If your exact vehicle isn't listed, or you're not sure, use the product chat on this page or contact our support team before ordering - we're glad to help confirm fitment.
What does it mean if a product is listed as universal fit?
Universal fit means the product is designed to work across a range of vehicles, not that it's guaranteed to fit every one. Compare the listed measurements, mounting requirements, and connector or hardware specs against your specific vehicle before ordering, since some installations may need additional hardware or minor fabrication.
Where can I find installation instructions for this product?
General installation notes are provided above where available. For detailed step-by-step instructions, refer to the manufacturer's documentation included with the product, or use the product chat on this page for questions about difficulty, required tools, or whether professional installation is recommended.
What if I have more questions about this product?
Use the product chat on this page for fitment, specs, installation, and compatibility questions, or contact our support team directly for help before you order.
