Robert Axle Project Universal Derailleur Hanger (UDH) Description: Modern drivetrains are precise and exacting and deserve a quality derailleur hanger. The Robert Axle Project UDH hanger is machined from 6061 aluminum to the same geometry as the stock SRAM hanger, ensuring a perfect fit, but with a little more beef. Features: Machined from 6061 Aluminum Improves shifting performance with accurate alignment Fits all bikes made for SRAM UDH hangers Compatible with all drivetrains, including e-bikes Works with Trek Active Braking Pivot frame designs Specifications: Material: Machined 6061 Aluminum Thread Pitch: 12 x 1.0mm Color: Black