From the manufacturer

All Wheels Manufacturing replacement derailleur hangers are produced in our Colorado shop to exacting tolerances.

• CNC machined 6061 aluminum
• Black anodized finish
• For M12x1.0 Thru Axles
• Replaces Transition part #01.18.93.0001

For all Transition models manufactured on or after 2015 (Excludes the TR500, Triple, Rapture, PBJ and BLT).