Advanced alloy paired with an advanced profile paired with a secret surface treatment make the RR411 the pinnacle of aluminum rims Asymmetrical profile allows for equalized spoke tension which creates a stronger wheel that stays true longer Low weight, strength, and a welded seam set the table for a durable and high performing tubeless experience 700C DT Swiss RR411 622 18 21.5 21 Dbl MSW Black 32 PV 435g 601 Nipples & PHR WashersUPC/EAN/GTIN: 7630033819893