S&S Cycle Big Bore Bolt-On Cylinder Kit

Unleash significant power gains for your motorcycle with the S&S Cycle 128 Big Bore Cylinder Kit. Engineered for performance, this bolt-on kit transforms your engine's displacement, offering a noticeable boost in torque and horsepower for an exhilarating ride.

Description

Elevate your motorcycle's performance with the S&S Cycle Big Bore Bolt-On Cylinder Kit, designed to deliver a substantial upgrade in power and responsiveness. This premium motorcycle cylinder upgrade features an impressive 4.250" bore, increasing your engine's total displacement to a mighty 128 cubic inches. Paired with an aggressive 11.0:1 compression ratio, this kit ensures crisp throttle response and robust acceleration across the RPM range, making every twist of the throttle more rewarding.

Crafted for straightforward installation, this bolt-on cylinder kit boasts an updated profile that utilizes the stock 4.840" bolt pattern, simplifying the upgrade process. Its design ensures seamless compatibility, working perfectly with your motorcycle's stock crankcases, which minimizes additional modifications. Proudly made in the USA, the S&S Cycle Big Bore Cylinder Kit reflects superior craftsmanship and durability, promising a long-lasting performance enhancement. The cylinders come in a sleek Wrinkle Black finish with non-highlighted fins, providing a subtle yet powerful aesthetic that complements any build. Experience the difference of a high-quality, high-displacement 4.250" bore kit engineered for serious enthusiasts.

Features & Highlights

• Achieve significant power with the massive 4.250" bore, delivering a substantial 128 cubic inches of displacement for unparalleled performance.
• Experience enhanced throttle response and acceleration thanks to an aggressive 11.0:1 compression ratio, maximizing your engine's potential.
• Enjoy straightforward installation with an updated profile and stock 4.840" bolt pattern, designed to integrate seamlessly into your existing setup.
• Designed for direct compatibility, this bolt-on cylinder kit works effortlessly with your motorcycle's stock crankcases, simplifying your upgrade.
• Proudly made in the USA, ensuring superior craftsmanship, robust quality, and lasting durability for the road ahead.
• Features a sleek Wrinkle Black finish with non-highlighted fins, offering a high-performance look that is both discreet and commanding.

Technical Specifications

• Model: Big Bore
• Style: Bolt-On
• Units: Kit
• Bore Size: 4.250"
• Displacement: 128 cubic inches
• Stroke Length: 4.500"
• Compression Ratio: 11.0:1
• Color/Finish: Wrinkle Black, Non-Highlighted Fins
• Vendor Part Number: 910-0685A