pretty much for hardtails only
Works great with hardtails or any full suspension with enough clearance to hang correctly. My newest full-suspension hangs badly and sways a lot at higher speeds. Wouldn't trust this rack with any bike that utilizes a rear shock right under the top tube, as many dw-link suspensions do. If you're a hardtail rider you're good to go, as the rack mounts easily, is incredibly stiff, and really does hold 3 bikes.