Pf30a sram dub black

The new SRAM DUB crank standard, built on a 28.99 axle, enables a more contamination-resistant BB design, while retaining the ultra-efficient and durable qualities CeramicSpeed ​​bottom brackets are known for. With an integrated dust cover for all models, a snug and secure fit that also fully protects the bearing face offers exceptional performance without sacrifices. CeramicSpeed ​​handcrafted bearings carry the load from the crank to the frame with unparalleled durability and efficiency.