As was stated, if you go to their website, it will tell you what size you need to buy. Its pretty much based upon the diameter of the handlebars. They only guarantee that they will work with the stock grips. You may be able to use other grips but then again you may not.Does that cruise control work with any grip? I have Avon grips on both my V-Star and my Harley and don't want to have to change them, as I like them a lot.