bike rack hitch pin

Racks commonly include locking hitch pins, anti-wobble or anti-sway systems, and locking mechanisms that secure the rack to the receiver.

Many racks provide tilt or swing-away mechanisms—quick-release tilt levers or swing-away arms let you access the rear without unloading the bikes.

Wheel sizes mentioned span roughly 18–29 inches. Tire-width capacity varies by design: platform-style racks can handle up to about 5.5" on some models, while other trays list limits such as 3" or 2.5" for specific wheel sizes.

Several racks list integrated locking systems, locking hitch pins, locking padded hooks or wheel locks, and keyed security locks to help secure both the bikes and the rack to the vehicle.

Many racks fold or collapse for compact storage: platform arms or the entire rack fold down or fold against the vehicle to reduce the profile when not carrying bikes.