21mm deep, tubeless ready, disc specific rims offer superior Enduro and All Mountain performance \n A nearly seamless welding process and a special anodizing treatment boost strength while remaining durable\n 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 \n Rims include Squorx nipples and washers