Our new QC Speed Locks are super cool. Forget the safety wire when changing gears - you won't need it. When you change gears all you do is pull 4 clips and 2 lock plates, change gears, and then reinstall the Speed Locks in a few seconds. No fumbling around the safety wire. Kits come complete with 4 special cover nuts, 2 lock plates and 4 clips. Aluminum model.