![Handlebar extension with double clamp base](https://images-na.ssl-images-amazon.com/images/G/01/x-locale/common/grey-pixel.gif)
The package comes with four rubber ring inserts to ensure a tight fit and protection of the mounting surface. Rubber ring diameter: 22 mm (0.87 inches), 25.4 mm (1.0 inches). You can add or remove them depending on the size of the handlebar. The base diameter of the handlebar clamp is 1.26 inches (32 mm) if the rubber ring is not included. The clamp base uses rubber inserts and locking bolts to prevent loosening in strong vibrations for mounting on motorcycle and bicycle handlebars. Suitable for handlebars with a diameter of 0.87 inches (22 mm), 1.0 inches (25.4 mm), 1.26 inches (32 mm). The kit also comes with an Allen key for easy installation