Internal Throttle Assembly
Ingenious design completely eliminates the
throttle pipe and housing. Converts the end of the handlebar into a single cable throttle. The throttle cable is routed through the bar so all components are hidden from view. For custom motorcycles only.
For 1" bars.
For custom motorcycles only. Requires
cutting the right bar end to install
Made in U.S.A.
Before installing your internal throttle assembly you will need to cut and remove 3.940 off of the handlebar end on the throttle side. You will then need to drill a hole for the throttle cable to exit the handlebars near the center of the triple trees (most handlebars are already pre-drilled for wiring purposes). Keep in mind that the throttle cable should not get kinked and should exit the handlebars in a manner that will allow it to function smoothly. It is also recommended that all moving parts in the throttle assembly should be lightly coated with bearing grease and the throttle cable should be oiled with the proper lubricant. Some carburetors may require an in-line cable adjuster to achieve full throttle at the carb.
After shortening the handlebars you will then need to drill a 13/64 hole for the set screw. Drill the hole 1.495 from the bar end. Drilling the bar from the underside is recommended for a cleaner appearance.
After the handlebars are prepped and ready, insert throttle cable through the hole in the handlebar until the cable comes out at the throttle end. Remove the end cap screw from the outer sleeve. Remove the outer sleeve completely by rotating clockwise. Do not lose the rollers. Due to variations in the rollers install in the same order they are removed. Once the outer sleeve is removed, slide the rollers away from the set screw. Locate the set screw on the inner sleeve. Insert throttle cable end into the slider then tighten the set screw using a small amount of blue loctite (medium strength). Re-assemble the throttle control. Insert the inner sleeve into the handlebar end. Align the set screw holes. Tighten set screw until flush with the handlebar using blue loctite (medium strength).