bike rack trunk

Some vehicle racks specify per‑bike limits (for example, about 35 lbs per bike), while hitch-mounted racks or vehicle carriers may list total capacities (for example, 143 lbs). Floor racks sometimes list single‑bike or frame holds up to around 100 lbs.

Most racks are made from steel in various forms—carbon steel, stainless steel, galvanized steel, or powder‑coated steel—and other metal frame constructions designed for durability.

Common protective features include padded contact bars for the vehicle, rubberized or anti‑slip straps to protect bike frames, and padded cradles or straps to reduce movement and scratching.

Many racks fold for compact storage: hitch and trunk racks often have foldable arms or a collapsible design so the rack compacts for storage and allows rear access when not in use.

Hitch‑style racks are typically designed for standard 2‑inch receiver hitches and are commonly specified for Class III or Class IV 2" hitch receivers on many vehicles.

Commercial and parking racks list compatibility for wheel diameters from about 12" up to 29" and tire widths up to roughly 3.0".

Requirements vary: some racks arrive fully assembled and require no setup, while others require user assembly. Product listings usually state whether basic tools are included or if you need to supply tools yourself.