What considerations are taken into account in choosing a motorcycle helmet?

1. The helmet strength is of no significance. The most important is that it fits the size and shape of the rider’s head.
2. The helmet doesn’t have to be standard, but it should have an aerodynamic design, to reduce fuel consumption.
3. The helmet should have a good ventilation system and as many fastening straps as possible.
4. Correct answer: The helmet should be standard, provide full protection (also to the chin) and fit the size and shape of the rider’s head.

WhyThe helmet must be standard, give full protection including the chin, and fit the rider's head size and shape.