The Kuat Piston Pro X E-Bike Ramp provides an easy way to get your heavier e-bikes up onto your rack. Specifically made to be sturdy enough for e-bikes, this ramp can also be used for bikes of any size if you have physical limitations that might make lifting your bike difficult. FEATURES : Easily attaches to tray end of bike rack. Compacts small enough to store in rear of vehicle. Extendable length allows for customizable upward slope. Allows for easier loading of heavy bikes including e bikes. Compatible with the Kuat Piston Pro X Hitch Rack.