Studio : DT Swiss Publisher : DT Swiss Product Description Super-wide tires provide real traction, control and safety even on very difficult trails. The DT Swiss XM 551 rim is the ideal counterpart. An extra-strong aluminum alloy specified by DT?Swiss, the proprietary PHR nipple system and excellent tubeless compatibility make it possible to exploit the full potential of these new tires. Tubeless-Ready Alloy rim can be used with or without tubes (tape, valves and sealant sold seperately). 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. 2.0 silver alloy Prolock Squorx Pro Head nipples and PHR washers included. ERD and weights shown include PHR washers. Pro Head Reinforcement System (PHR) has a larger and more spherical contact area and is designed to balance loads transferred to the rim. The PHR system acts like a ball and socket interface allowing the spoke to pivot and follow the perfect trajectory from hub to rim. Color: Black. Weight: 595. Hub Drilling: 32. Rim Depth: 21. Manufacturer Spec ERD: 564. Valve: Presta. ISO Diameter: 584 / 650b / 27.5". Valve Length: Short Presta Valve 32-40mm. Wheel Size: 27.5". Tire Type: Clincher. Tire Type: Tubeless Compatible. Rim Center Offset: 0. Rim Joint: Welded. Brake Track: None. Defined Color: Black. Rim Width (External): 44. Rim Material: Alloy. Rim Width (Internal): 40. 0
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