"using M4 blots Please care the price just for 2pc gear hanger!!! Please make sure the hanger fits your bike well before place order ! ! ! We strongly recommend you visually confirm your hanger choice with your existing hanger! Compatible with for the following bikes: Aka Scott gear hanger, mech hanger: #239530 Fits Scott direct mount frames: 2018 Scott Foil 10 20, Metrix 10, Addict 10 20 30, CX RC, Gravel 30 Disc, RC 15 20 Premium Ultimate Disc, Contessa Addict 15 25 Disc 2017 Scott Addict 20 30, CX 10 CX20, Premium Di2 Disk, Contessa Solace 15 25 2016 Scott Addict CX 10 ULT, CX20 105, Gravel Disc 2017-2018 Scott Addict Gravel 10 20 Disc 2016-2017 Scott Solace 10 20 30 FB Premium Disc 2015 Scott Solace 15 40 FB Disc 20CD Package Contents: 2pc Bicycle gear hanger with Bolts