- Epitomizes superior design and cutting edge materials, delivering the ultimate in tire support for electric mountain bikers - Engineered to endure the significant impacts and stresses associated with E-Bike use, this insert ensures that cyclists can ride with confidence, no matter the obstacles they might face - In case of a puncture, you can ride up to 50km in run-flat mode. You can get home easily and repair the damage in a later moment - Cornering support increased - Valve included