303 Firecrest Tubeless Rim A119mm internal width and tubeless ready Zipps ShowStopper textured braking surface delivers unrivaled rim braking performance in wet or dry conditions ZR1 hub is engineered in Germany with better seal design for improved durability and quicker response with 66 points of engagement ABLC Sawtooth dimple design helps manage air flow around the rim, and contributes to create a faster, more stable wheel Ships with QR end caps, quick release skewers SRAM