This is a universal throttle assist for cruisers.  A pleasant cruise shouldn't become a white-knuckle ride! Kuryakyns innovative Universal Econo-Throttle Assist allows you to relax your grip onthe throttle, making pins & needles & fatigue adistant memory. This simple design emphasizes reliable function over flashy complex styling. Avariety of interchangeable rubber inserts allow use with most grip configurations.

**Please use this link to the manufactures instructions for even more pictures and a great description of the wonderful new product**

http://www.kuryakyn.com/documents/installation/6218-21MC-0509.pdf

This will fit model:
Universal: All OEM grips & aftermarket grips with minimum1-1/8" to maximum 1-3/4" outside diameter