Derailleur Hanger 334CompatibilityBMC. Alpenchallenge AC01, AC02 - 2014+. Crossmachine CX0 - 2017+. Grandfondo GF01 Disc, GF02 Disc - 2014+. Grandfondo GF01, GF02 - 2014+. CNC machined 6061 aluminium
. Black anodized finish
. Attaches to frame with (2)...