Our Ref: CC1123. (a) Your existing hanger, back and front, preferably having removed from your bike & rear derailleur, OR. Gravel Pro. GTX 28 Gravel 2020. Gravel Stone 28" L-TWOO 2022LEONY 6 2021. There are dozens of different derailleur hangers available and one model is seldom interchangeable with another.
