Brute II Extreme 37-54 Tapered shaft

Primo's "Brute II Extreme" belt drives feature the ultra severe duty 1 1/2" wide 11mm pitch Kevlar polychain belt. These drives are designed for enclosed primary fitment, either within aluminum primaries or within so called "tin" or stamped steel primary covers. All kits can be used with an OEM style or aftermarket dry clutch. Belt drives for 1936 thru 1964 models feature a 33 tooth front and 49 tooth rear pulley and are available for use with 1936 thru 1954 style tapered engine sprocket shaft or 1955 thru 1964 style splined engine sprocket shaft. Belt drives for 1965 thru 1984 feature a 34 tooth front and 49 tooth rear pulley and are available in your choice of kickstart-only or kick- and electric start.