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We used this once and the cheap plastic cap at the end with the reflector broke and popped off. This plastic piece is the only thing holding the bike Frame holders in place on the metal rod so 2 of the bikes slipped off one side and were dangling down. Luckily we noticed in the rear view mirror and were able to improvise and use bungees so they didn't fall completely off but fenders on the bikes were messed up from being twisted when they slid off.
Quite sturdy but the hitch bolt needs to be tightened every time. And talked to the manufacturer but suggestions and option given to fix the issue were worthless. So I would. It recommend this product.