bicycle helmets guide image
young agai
I am designing a bike helmet shell, can anyone tell me what the dimensions of just the shell are of a child to adolescent sized helmet? Thank you!!!
Answer
Smallest sized helmet generally available is 48 cm (18.9 ")
There were smaller helmets around but most manufacturers steer away from these. The skull bones of a child less than this size may not have sutured together.
An adolescent can have a fully grown head
Larger sizes of 63 cm (24.8") are common. Some people need an even larger helmet.
Rough guide width 0.8 times length. Depth 0.4 times length
Smallest sized helmet generally available is 48 cm (18.9 ")
There were smaller helmets around but most manufacturers steer away from these. The skull bones of a child less than this size may not have sutured together.
An adolescent can have a fully grown head
Larger sizes of 63 cm (24.8") are common. Some people need an even larger helmet.
Rough guide width 0.8 times length. Depth 0.4 times length
Wouldn't it be better for the government to give guidance as far as staying healthy by?
Lilly
doing things such as giving fines to parents who fail to: make sure their children wear shoes when walking on pavement so that they don't end up with glass and other sharp objects cutting their feet; purchase a bicycle helmet for their children when they buy a bike and make the child wear it; and teach their children to walk on sidewalks instead of in the streets in order to stay safe? Wouldn't it make more sense for the government to worry about guiding people who do not have good judgment when it comes to parenting, instead of telling us to not drink pop and eat at McDonald's?
Answer
These are very different, not mutually exclusive so there doesnât need to be a choice. The government can do either, both or neither.
What you are proposing would be in effect mandatory, and the government is often cautious about imposing on citizens' choices by making everything mandatory. They do so from time to time, but usually only in clear cut cases. And even now, extremely bad judgment involving a child could perhaps be prosecuted under a child endangerment charge. (Which is a criminal charge, not a civil fine). Sounds like you are proposing a system of lesser, civil charges for minor cases of irresponsibility that probably wouldnât get prosecuted now.
One example where that is done now is with car seats, which are now mandatory. There could certainly be laws passed, probably at the state level, creating additional, similar requirements.
Such rules are enforced and made at a local level, while the dietary guidelines are usually from the federal level â in a sense a completely different âgovernmentâ so different organizations are deciding the two issues.
In any case, guidelines like that are just educational and do not force anyone to comply, so they can be issued relatively freely.
These are very different, not mutually exclusive so there doesnât need to be a choice. The government can do either, both or neither.
What you are proposing would be in effect mandatory, and the government is often cautious about imposing on citizens' choices by making everything mandatory. They do so from time to time, but usually only in clear cut cases. And even now, extremely bad judgment involving a child could perhaps be prosecuted under a child endangerment charge. (Which is a criminal charge, not a civil fine). Sounds like you are proposing a system of lesser, civil charges for minor cases of irresponsibility that probably wouldnât get prosecuted now.
One example where that is done now is with car seats, which are now mandatory. There could certainly be laws passed, probably at the state level, creating additional, similar requirements.
Such rules are enforced and made at a local level, while the dietary guidelines are usually from the federal level â in a sense a completely different âgovernmentâ so different organizations are deciding the two issues.
In any case, guidelines like that are just educational and do not force anyone to comply, so they can be issued relatively freely.
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Title Post: Bicycle helmet shell dimensions?
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