Don't throw away your rack - this will raise up your fork a few inches to give you the clearance you need. Instead of attaching your fork directly to your rack, attach it first to the Fork Up Riser, and than attach to your rack. Undo quick release on your front wheel, drop wheel out, slide in the Fork Up, securely tighten quick release. It's ready to put up on any fork mounted rack & your ready to roll! Tech Specs: The side plates are made from thick 7 gauge steel plate with safety tabs. The top tube is 4130 chromoly steel. Some models have 6061-T6 inserts with all hardware to fit your fork. The Fork Up uses a tough powdercoat finish.