Protaper Bike handles J-Unit Standard

The ProTaper J-Unit handles are only compatible with the ProTaper J-Unit handlebar, specially designed to adapt to the morphology of children's hands (up to about 10 years old). To achieve this, ProTaper first determined the ideal diameter of the handle and then the diameter of the handlebar. For added safety, the handle uses an integrated hanger tip that will never fall off. ProTaper J-Unit handles are compatible with all existing derailleur levers and brakes, as the handle has a standard mounting diameter.External handle diameter: 22 mm.