S&S Cycle Big Bore Cylinder Kit 128ci

Unleash the full potential of your motorcycle with the S&S Cycle Big Bore Cylinder Kit 128ci. Engineered for superior performance and durability, this bolt-on upgrade transforms your engine, delivering a significant boost in power and torque.

Description

The S&S Cycle 128 Big Bore Cylinder Kit is designed to drastically increase your engine's displacement to a formidable 128 cubic inches, utilizing a precise 4.250" bore and 4.500" stroke. This high-performance bolt-on kit features an updated cylinder profile that maintains the stock bolt pattern of 4.840", ensuring a straightforward installation process with your existing crankcases. Crafted with an impressive 11.0:1 compression ratio, these cylinders are built to deliver exceptional power and responsiveness, making every ride more exhilarating. The striking wrinkle black finish with highlighted fins not only adds a custom aesthetic to your engine but also signifies the premium quality and robust construction. Proudly made in the USA, this S&S Cycle big bore upgrade exemplifies engineering excellence and reliability, providing motorcycle enthusiasts with a proven path to enhanced engine performance without extensive modifications.

Features & Highlights

• Massive Displacement Increase: Elevate your engine's power with a significant upgrade to a 128 cubic inch displacement, achieved through a meticulously engineered 4.250" bore, ensuring substantial gains in horsepower and torque.
• Seamless Bolt-On Installation: Designed for convenience, this kit features an updated profile that perfectly matches the stock bolt pattern of 4.840", allowing for a direct, hassle-free installation onto stock crankcases without the need for complex modifications.
• Optimized Compression Ratio: Experience exhilarating performance thanks to an aggressive 11.0:1 compression ratio, engineered to maximize combustion efficiency and deliver potent, responsive power.
• Premium USA Craftsmanship: Manufactured with pride in the USA, these cylinders represent S&S Cycle's commitment to superior quality, durability, and precision engineering for long-lasting reliability.
• Distinctive Wrinkle Black Finish: Enhance your motorcycle's aesthetics with the eye-catching wrinkle black finish complemented by highlighted fins, providing a custom, high-performance look that stands out.

Technical Specifications

• Product Name: Cylinder Kit
• Model: Big Bore
• Style: Bolt-On
• Units: Kit
• Bore Size: 4.250"
• Stroke Length: 4.500"
• Displacement: 128 cubic inches (128 ci)
• Compression Ratio: 11.0:1
• Color/Finish: Highlighted Fins, Wrinkle Black
• Vendor Part Number: 910-0684A