Fork Mounted Bike Racks secure the bike utilizing the quick release skewer or thru axle that holds on the front wheel of the bike. Fork mount carriers generally have a bit more stability than upright racks, and offer a lower profile on the roof. However, you do have to remove and keep track of the front wheel of your bike. Typically it can find a home in the cargo area of your vehicle, or a Front Wheel Holder that attaches to the same crossbars as the bike carriers are available for purchase seperately to keep wheels out of your vehicle.