Complete 1.5" Primary Belt Drive Kit for Big Twin w/ 4 Speed Transmission

This 1.5" Belt Primary Kit is a complete, ready-to-install open primary setup designed for classic Big Twin engines with 4-speed transmissions . It combines high-quality components, including a durable 1.5" belt drive, aluminum/Kevlar clutch plates, and a five-stud clutch hub into a strong, reliable system with improved performance and easier installation. Built for choppers, restorations, or conversions, it delivers a clean exposed look while saving time by bundling all essential parts into one package.