Please be aware that the Hilt JR grips feature a 19mm inner diameter, specifically designed for young riders. Make sure to measure your bar end size before purchasing to ensure a proper fit. Tailored for Young Riders: The Hilt JR grips come with dimensions specifically chosen for smaller hands, featuring a 19mm inner diameter, 26mm outer diameter, and a compact length of 115mm, ensuring a snug and comfortable fit for the next generation of cyclists. Lock On Security : A single lock on clamp keeps the grips securely in place, and makes them easy to install and lightweight. There is no need to worry about them slipping or twisting while riding. Hard-wearing, Soft Compound : Our unique compound creates the perfect balance of soft 'feel' with plenty of durability. Enjoy the comfortable contact point with the durable rubber grips. Featherlight Construction: Weighing in at a mere 72 grams, the Hilt JR grips are engineered to minimize the overall weight of the bike, facilitating quicker and more agile handling that's especially beneficial for competitive young racers.