KOSO is the best accessory heated cuffs on the market. They fit 1" handlebars and more. In my case, I installed on my Harley and they fit perfectly without any additional modifications. The integrated switch allows you to safely select ( without taking your hand off the handlebars) one of five temperature ranges where each is indicated by a different color LED. In addition, equipped with a distributor with a fuse, which provides additional safety. A product worthy of recommendation and its price.