The DT Swiss FR 541 are 30mm wide, 21mm deep, tubeless ready and offer superior performance and reliability for Enduro, and DH use \n DT Swiss patented Pro Head Reinforcement System (PHR System) is designed to balance the load transferred to the rim \n DT 370 LN hubs are compatible with all Ratchet LN freehub bodies as well as DT's 36 and 54 POE ratchet upgrade options \n Built with DT Swiss Competition double butted spokes (2.0/1.8/2.0) and brass DT Swiss Squorx nipples \n Hand laced and trued in the USA