Unidirectional, hookless carbon rim with an asymmetrical profile to equalize spoke tensions for a stronger more durable wheel buildPatent-pending technique ensures meticulous layer-by-layer quality control, delivering DT`s most durable carbon rims to dateApproved for E-bikes up to 20mph or 250W max29inDT SwissEXC330622303722DblDISCCarbon28PV533g601UPC/EAN/GTIN: 7613052549330