Cylinder Works Big Bore Top End Cylinder Kit
Cylinder Works Big Bore Top End Cylinder Kit
About this product
About this product
Upgrade your motorcycle's engine with the Cylinder Works Big Bore Top End Cylinder Kit, engineered for superior performance and durability. This comprehensive kit provides a ready-to-install solution, making it simple to enhance your 4-stroke engine's power and response.
Description
Experience a significant boost in your motorcycle's performance with the Cylinder Works Big Bore Top End Cylinder Kit. This meticulously engineered kit is designed as a direct bolt-on replacement, eliminating the need for complex re-plating processes and ensuring a virtually identical appearance to your OEM cylinders. Crafted for 4-stroke engines, this kit features an impressive oversize bore of +3.20 mm, delivering enhanced displacement and power. Each cylinder is precision-plated with Nickel Silicon Carbide, a robust material known for its exceptional wear resistance and long-lasting durability, ensuring your engine performs reliably for countless rides. The kit includes a perfectly matched Vertex piston, rings, pin, and clips, along with a complete gasket set, all meticulously chosen to work in harmony for optimal longevity, reduced engine noise, and peak performance. Proudly made in the USA, this Cylinder Works kit offers a premium, hassle-free upgrade for serious riders.
Features & Highlights
- Enhanced Performance & Displacement: Transform your 4-stroke engine with a big bore design, featuring an oversize bore of +3.20 mm for increased power and improved throttle response, giving you a competitive edge.
- Ready-to-Install Convenience: Enjoy a hassle-free upgrade with this direct bolt-on cylinder kit, designed to integrate seamlessly without requiring any re-plating or complex modifications, saving you time and effort.
- Superior Durability & Longevity: Benefit from cylinders plated with advanced Nickel Silicon Carbide, providing exceptional wear resistance and extended engine life, ensuring reliable performance under demanding conditions.
- Optimized Engine Harmony: Each kit includes a precisely matched Vertex piston, along with all necessary rings, pin, and clips, meticulously selected to reduce engine noise and maximize overall performance.
- Complete Top End Solution: This comprehensive kit comes complete with everything needed for a full top end refresh, including the cylinder, piston, and a full gasket kit, ensuring a perfect seal and fit.
- OEM-Quality Aesthetics: Engineered to look virtually identical to your original equipment manufacturer (OEM) cylinders, maintaining the authentic appearance of your motorcycle while significantly upgrading its internals.
- Proudly Made in the USA: Manufactured with precision and quality craftsmanship in the United States, guaranteeing a product built to the highest standards for discerning motorcycle enthusiasts.
Technical Specifications
- Type: Top End
- Style: Big Bore
- Units: Kit
- Material: Nickel Silicon Carbide
- Bore Size: Oversize (+3.20 mm)
- Engine Type: 4-Stroke
Shipping & Return
Shipping & Return
Free shipping to GLS parcel shop parcel box for purchases over DKK 1,000.
GLS home delivery costs DKK 59.
We do our best to ship your order as quickly as possible. All orders are generally packed within 24 hours on weekdays.
There is a 14-day return policy. Read more
Specifications
11007-G01
Gasket Kit
Big Bore
Oversize (+3,20 mm)
153 mm
12 mm
181 mm
4-Stroke
Nickel Silicon Carbide
Top End
Kit
Reviews


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Martin and William are the duo behind Parts Denmark — an unlikely but awesome combo of a tech-savvy young IT wizard and a seasoned motorcycle guru who’s seen (and fixed) it all. Together, we’ve built a team with big ambitions, plenty of passion, and a shared mission to create great things — side-by-side with you.
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