Designed to fit most common handlebar sizes, this compact and durable mount is ideally suited to the open road or trails. Uses common zip ties to attach to a variety of handlebar diameters. Made of high strength composite, it is light weight too. Adjustable to allow for the best viewing angle, this product is perfect for any cyclist and their compact electronic device. Genuine RAM accessories. Part No: RAP-274-1-TO5 RAM EZ-ON/OFFTM Handlebar Mount is compatible with the Tom tom One XL (version1) NOT EASY-PORT. Mount includes 12 degree tapered shaft for tapered handlebars. Designed for bicycles and NOT recommended for Motorbikes.