DT Swiss E 550 Rim - 700 Disc Black 28h30mm deep, tubeless compatible, disc specific rim Single pocket hollow rim construction extrusion with sleeved joint DT Swiss patented Pro Head Reinforcement System (PHR System) is designed to balance the load transferred to the rim, working as a ball and socket interface, requiring unique washers and Squorx nipples Rims include Squorx nipples and washers TECH SPECS model E 550 size 700c internal external 22 26mm hole 28h ERD 585mm color blk weight