100% brand new components assembled in our New York V-Twin Motor Shop. Assembly includes replica cast transmission with left side race installed. To view the full assembly see our entire production video on YouTube!
Assembly also includes clutch hub nut clutch throw out bearing and 17 tooth transmission sprocket. The case is a natural finish top cover is parkerized and the right side door is black. The sprocket cover clutch arm and shift linkage must be purchased separately. This 4-speed transmission comes completely assembled with all gears shaft and covers intalled for a quick straight-forward installation. It accepts original primary drive with clutch and the chain sprocket with cover. Looks the same as a 3-speed unit the only extra part required is a 4 speed shifter gate. The original 3 speed transmission is the large gear ratio difference between 1st and 2nd i.e. 2.47 to 1.57:1 with a consequent big rpm drop. The 4 speed version with its extra gear allows you to stay in the power band which is much better for performance. 17 tooth countershaft sprocket; the shift pattern follows: 1st gear is forward neutral 3rd and 4th gear are back towards rider as seated on motorcycle. Shift pattern uses 4-speed gate and rod with clevis. Shift lever all the way to the rear ball detent in first gear pocket for lever position during assembly. Order clutch pack separately. *NOTE: Lever all the way towards the rear is first gear! **NOTE: The 4-speed tank shift gate is available separately for the early cateye tanks or the late tanks of 1948-1973.

Suggested to use with #18-0782 45 Clutch Pack Kit
Suggested to use with #21-0894 Servi-Car Shifter Rod Kit
Suggested to use with #21-0894 45inch Sprocket Cover and Clutch Arm Assembly Narrow Type
Suggested to use with #17-1007 45 WL Kick Starter Arm Kit Black
Suggested to use with #17-9836 Transmission Thrust Washer Left Side
UOM (Unit of Measure): EA
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V-Twin Manufacturing Part #: 17-5500