346213 Extended Motor Sprocket Shaft Nut Fits All Shovelhead 1970 1

Zodiac offers these extended motor sprocket shafts for custom builders who need to clear fat rear tires while keeping the engine perfectly centered. This hardware is designed to fit Big Twin, FX, FXR, Softail, and Touring models from 1970 to present. By using these 12mm to 55mm extensions, you can move the primary drive outward to gain the necessary clearance. To ensure the crankshaft can handle the extra leverage, the 45mm and 55mm spacer rings come with a support bearing already installed. It is a well-engineered approach to wide-tire conversions, ensuring your drivetrain remains stable and properly aligned. Offset transmission plates are also available for Softail models through 1999.