HARLEY
Subcategories
Available in multiple thread sizes and anodized finishes; fits the rear chassis of most sport bikes. Enables the use of V-shaped adapters PART #4101-0235 for reliable stability.
Available in multiple thread sizes and anodized finishes; compatible with V-shaped adapters PART #4101-0235.
Compact bobbins for rear chassis fitment on sport bikes. Available in multiple thread sizes and anodized colors. Enables use of V-shaped adapters Part #4101-0235 for reliable stability.
Aluminum bobbins in multiple thread sizes and anodized colors; pair fits most sport bike rear chassis. Compatible with V-shaped adapters PART #4101-0235.
Aluminum bobbins in multiple thread sizes and anodized colors; fit rear chassis of sport bikes and enable use of “V” shaped adapters PART #4101-0235.
Available in multiple thread sizes and anodized colors; fits most sportbike rear chassis and accepts "V" shaped adapters PART #4101-0235.
Available in multiple thread sizes and anodized colors; fits rear chassis of sport bikes.
State-of-the-art compression release valves that reduce hot starts and lower starter and battery loads. Sold as a set and made in the U.S.A.
State-of-the-art design to reduce hot starts and starter/battery loads. Custom molded knobs, sold in pairs, made in the U.S.A.
Slimline Duals full system for Touring — CARB & EPA compliant, cooler exhaust routing to reduce heat at the rider and passenger, preinstalled heat shields, and selectable Rinehart or MotoPro45 mufflers.
Stellite-tipped stainless-steel valve nitrided for improved wear resistance, corrosion protection, and reduced friction.
Designed for HD® Evolution OEM replacement. Machined from high‑grade metal with a corrosion‑resistant dark finish. Multipurpose alignment pins. Made in the USA.
High-density powdered metal valve seats for superior wear resistance and thermal stability. Tested for track and street use.