All things considered, the Rocky Mounts MonoRail is the best 2 bike hitch rack on the market under $600.
Road, mountain and fat bikes all fit easily, as do kids bikes with 20 inches wheels or larger. It holds women's and other step-thru bikes without using an adapter bar.
No bike frame contact, sliding and locking hooks clamp the front wheels.
And with a weight carrying capacity of 60 pounds per bike it's strong enough to carry two electric bikes.
Includes locks for the bikes to rack, and for the rack to the car.
An additional bike mount to expand it to carry three bikes is available for $189.95.
Weight 39 lbs, 11 pounds lighter than the Thule T2 Classic.
Available for either 1-1/4 or 2 inch hitch sizes, does not convert for one size to the other.
Includes free assembly and installation.