I would suggest adding washers to the equation. Turns a little light on. Bad design and hurts the feet, as I was travelling and could not return the product before stipulated time, got stuck with this bad footwear by Crocs. I sent them back remembering I own the same style from Zappos that did not wear well (all black) and were horribly uncomfortable and stiff against bunions. Der Sound ist sehr gut. Bonus if you are renting or just dont want to go through the hassle. The rack should have been a few inches wider, because fitting 3 bikes of same height is rather difficult without entangling the bikes. They served my need, but wish I had a pair that wouldnt let rocks in. tutto ok ! This is a really sturdy and stable squat rack.