9. Tighten the chinstrap
When finally adjusting the chin strap, make sure that there is a gap of about one to two finger widths between the chin and the strap. This way, the helmet stays in the right place in case of a fall without cutting off your ability to breathe. At the same time, the strap cannot slip over the chin. Once the chinstrap has been adjusted to the correct length, you can fix the excess length into place. Depending on the model, this can be done with a rubber ring, another loop or on the chin buckle. If the belt flutters and bothers you while riding, you can also simply snip it off. If you do cut it, make sure not to go too short, as you may have to readjust the helmet to fit a cap underneath in winter. The cut edge can be finished carefully with a cigarette lighter, so that you to don’t have to deal with annoying frays.