Allows moving primary 12mm or 25mm without moving the transmission Kit comes with an extended transmission main shaft and extended transmission main drive 5th gear, leaving the transmission in stock location allowing to offset front drive pulley 12/25mm 12mm allows for 180 tire with new style stock narrow pulley and belt 25mm allows for 200 tire with new style stock narrow pulley and belt Custom made wide swingarm and fender struts and fender required for both kits Note - Some 1993 models may require 94-Up 5th countershaft gear.

This product can be used with Model Part# Harley-Davidson Big Twin 91-99 POKHD-1 Harley-Davidson Dyna 99-03 POKHD-1 Harley-Davidson Softail 00-03 POKHD-1 Harley-Davidson Big Twin 91-99 POKHD-2 Harley-Davidson Dyna 99-03 POKHD-2 Harley-Davidson Softail 00-03 POKHD-2