The Bell Sidetrack Kids helmet is fine — but if it doesn't stay on, the safety rating doesn't matter

The Bell Sidetrack Kids helmet has solid safety credentials, but a helmet is only as good as its willingness to stay on a moving child’s head. Fit can be hit or miss depending on your kid’s head shape, and the real test is whether your child will actually keep it on. Measure head circumference before buying — the best helmet is the one that stays put.