The fork attachment casing allows you to attach the bike by its fork. It is compatible with most axles on the market (quick-release: 9x100 mm, thru axle: 12x100 mm, 15x100 mm and 15x110 mm).
Does not fit forks with nut axles.
You can carry one additional bike with this kit, including a fork attachment axle and protective cover: (Ref: 8831083).