If youre riding a bike with a through axle on the front you have two options for mounting to a seasucker rack use a fork up adapter or use the new dedicated 15mm or 20mm fork mounts the 15mm and 20mm fork mounts are bolt on and meant for people who are always using their rack with their thru axle bike to attach unbolt the existing fork mount youll need an adjustable or 716 wrench and a 532 hex wrench place the new fork mount in position and bolt on using the same hardware you just