TreeFrog 12x100mm thru axle fork mount made for dedicated road, triathlon, gravel and cyclocross cyclists with disc brakes. When you remover your front wheel, you must use the same 12mm thru axle, which came with your bike, to secure it to TreeFrog 12x100mm fork mount, the same way, as you would secure your front wheel.
The thru axle must be medium tight to securely transport your bicycle.