V-Twin Manufacturing 8mm Belt Drive, 1978-84 - Sold Each 8mm Primo Belt Drive. 8MM Closed Closed Primary for 74 and 80 . Designed to fit inside Primary Cover. Increases horsepower, mileage and quiets engine while retaining stock appearance. Closed Primary. Kick start only 8mm. 1 belt type.Ye
V-Twin Manufacturing 3" Belt Drive, 1937-54 - Sold Each 8mm Open Open Primary for 74 & 80 8mm. These units were designed for competitive use or big inch street motors. Note: All 2 and 3 belt drive units fit adjustable transmission bikes only.Years: 1937-1954 Width: 3"Replacement
V-Twin Manufacturing 2" Belt Drive, 1955-84 - Sold Each These units were designed for competitive use or big inch street motors. Note: All 2 and 3 belt drive units fit adjustable transmission bikes only.Years: 1955-1984 Width: 2"Replacement
V-Twin Manufacturing 1-1/2" Primo Motorcycle Belt Drive Kit 8mm fits FL 1955-1964 - Sold Each Primo Motorcycle Belt Drive Kit 8mm Kit includes front and rear pulleys, belt, and hardware. Kit can be used with a closed or open primary. For use with kick starter models with a 1-1/2" belt. Fits: FL 1955-1964
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