XM 481 Rims are tubeless ready and constructed from alloy, ready for your next wheel build. Tubeless-Ready Alloy rim (tape, valves and sealant sold separately) 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 XC, All Mountain and Enduro riding Hub Drilling: 28 Color: Black Wheel Size: 27.5" ISO Diameter: 622 / Road / 29" Brake Track: None Valve: Presta Rim Width (Internal): 30 Manufacturer Spec ERD (mm): 601 Defined Color: Black Rim Material: Alloy Weight: 550 Tire Type: Tubeless Ready Rim Center Offset (mm): 0