Customer Rating: Summary: this is not durable. I got this recently and after using it for 3 days it starts to collapse. It slips also bec its plastic. Comment: Minoura Mag Riser-3 Front Wheel Block " 2 position Grey 133020this is not durable. I got this recently and after using it for 3 days it starts to collapse. It slips also bec its made of plastic. I will not recommend this product. Trust me don't take your chance just because its cheap. Customer Rating: Summary: Minoura Mag Riser Comment: Really a great product for use with a bike stationary trainer. Delivered very quickly and in excellent condition. Customer Rating: Summary: Not Durable Comment: I've been using this product for a few months. It's not very durable, it's starting to collapse on one side. If giving the choice now...I would have bought something else.... Customer Rating: Summary: Very sturdy, fits even large ATB tires Comment: Very sturdy, fits even fat tires for mountain and ATB bikes. Only complaint, it should be designed with rubber on the bottom to keep it from slipping.
