Enduro may be young as a discipline, but at its core is the intrinsic need of riders to ride burlier terrain faster and faster. Something that MTB was all about since the beginning. The EX 511 rim is the perfect tool for this quest: It comes with all the technology that has delivered many EWS wins and packs it in a 30 mm wide profile. Ready to go burlier, faster. 2.0 silver alloy Prolock Squorx Pro Head nipples and PHR washers included The wheel must be built with the supplied PHR washers and Pro Head nipples. The PHR washer must be positioned between the nipple and rim and fit correctly within the radius of the rim. DT Swiss recommends that the contact area between the nipple and PHR washer is greased ERD and weights shown include PHR washers,Intended use is All Mountain, Enduro and Freeride/Downhill 27.5" + Washers: 555g 29" + Washers: 590g