XX Downhill CL55 Crankset

What Our Gearhead® Experts Are Saying:

"I’ve been running the CL55 on a 148mm bike, and the shorter arm options make a real difference in pedal clearance. The arms feel solid without being overbuilt, and the T-Type ring holds up to repeated hard efforts. It’s a smart setup for riders who want precise chainline and gravity durability."

When tight compressions and blown-out berms demand precision, we rely on the XX Downhill CL55 Crankset to keep our power delivery controlled and consistent. Designed for 55mm chainline frames, it gives us the ground clearance and stance modern gravity bikes demand while staying composed under repeated high-load efforts.

Built around SRAM’s DUB Wide spindle platform, the CL55 configuration is optimized for 148mm rear hub spacing and 73mm bottom bracket shells. The robust aluminum arms feature machined reinforcement in high-wear and rock-strike zones, helping them resist cosmetic damage and structural fatigue through a long race season. Available in progressively short lengths down to 150mm, the crankset allows us to fine-tune pedal clearance and rider balance. Paired with a T-Type chainring for precise chain retention and compatibility within the Transmission ecosystem, it’s built to handle the torque and impacts gravity riding delivers.