allow you to run 7/8" bars in 1" risers or stock Triumph motorcycle p-clamps

and the undrilled mounting tabs give you the freedom to install it exactly how you want

one is are required to mount the Super E Carburetor

OIF (oil in frame) Triumph motorcycle head and allow you to run earlier 650 c

Norton and other British motorcycles

Deluxe Throttle Housing Polished Aluminum for 1 inch bars Subcategory_Grommets allow you to run 7/8"Built in forged aluminum, this external throttle housing is set up for a single cable application and fits 1" (25, 24mm) handlebars. Throttle tube not included, this is for the throttle housing only. Features a brass cable stop and brass knurled throttle stop screw. Polished Aluminum finish. Brought to you by Kustom Tech in Italy.