While we love the idea of a quick-release bike rack for our son so that he can look cool when he's not riding home from school with his books, we are disappointed that the rack will not stay tight. The quick release latch is stripped and won't tighten any further. The rack freely moves from side to side, causing his books/gear to repeatedly fall off on a normal ride on a sidewalk, not on rough terrain. I wish I could have it replaced or refunded.