tlp743
i travel to school by bike. sometimes my bag is really heavy with books etc. i keep my lock (U lock) in my bag because there is no room in my frame (for water bottle). so i need a good quality lock for security and that is easy to transport.
any suggestions???
Answer
Yeah, get the kind of lock they use in Europe and Asia. It bolts onto your seat stays, has a key, and immobilizes your rear wheel when locked. If you need additional security a simple vinyl-coated wire rope with loops at both ends can be used to secure front wheel, helmet, saddle and other parts and loop through a rack or whatever. These locks are super convenient. Here's a good German one: http://tinyurl.com/framelock . They're not so easy to find in the U.S., but you can get them from North Road http://www.northroadbicycle.com/
Heres what it looks like mounted: http://stonehead.files.wordpress.com/2008/01/trike04.jpg
Yeah, get the kind of lock they use in Europe and Asia. It bolts onto your seat stays, has a key, and immobilizes your rear wheel when locked. If you need additional security a simple vinyl-coated wire rope with loops at both ends can be used to secure front wheel, helmet, saddle and other parts and loop through a rack or whatever. These locks are super convenient. Here's a good German one: http://tinyurl.com/framelock . They're not so easy to find in the U.S., but you can get them from North Road http://www.northroadbicycle.com/
Heres what it looks like mounted: http://stonehead.files.wordpress.com/2008/01/trike04.jpg
Does anyone know is a bike helmet could save a child's life if that child was hit by a car?
The Jolly
I know that bike helmets are essential and absolutely prevent head injuries when a child falls off a bike (assuming it fits properly and buckled, etc.)
But would a kid stand a chance if hit by a car and wearing a helmet?
In case your're wondering this question was prompted by an 8 year old being killed on his bike yesterday. He was riding with his father but he had no helmet on when a van struck him. :'(
Really? A helmet only protects the head? Well who whuda thunk it?
For chrissake, I know that. He died of a head injury. I'm asking if helmets are designed to protect in a big impact like that.
It's only dubious to a moron. I have my own child and these issues are important to me.
Answer
Sorry to hear of the accident, that's sad. I'm not good at delivering bad news, so please bear with me on this
Whilst it's tempting to say that "a helmet would have saved his life", it's not always the case. Bike helmets are made of polystyrene foam which is supposed to absorb some of the impact - essentially flattening the roundness of the head to make a bigger contact point at the point of impact, thus reducing the forces on that part of the head. As bicycling is an aerobic exercise (as opposed to motorcycling, which involves you sitting on the motorbike and not much else, at least activities-wise), a bicycle helmet needs to be ventilated or we'd overheat and pass out.
A bike helmet is supposed to be able to reduce injuries to a person falling off their bike from a height of <4 feet at a speed of <12mph. This essentially means a kid falling off his/her bike without any additional forces being exerted, as you've mentioned.
In the case of a van hitting the kid, this immediately takes the helmet out of its certification zone. This hurts to say this, but it's unlikely that the helmet would have made much difference given how they're designed to operate. One other thing to be aware of is that many helmet-certification tests allow the helmet to be taped to the test rig as well as strapped how it should be worn. This is clearly not something we'd do, and nor are we supposed to do it. When independently tested by a UK consumer magazine, many helmets failed to meet the standard (in this case EN1078, for Europe) they were supposedly certified to.
My thoughts and prayers are with his family.
Sorry to hear of the accident, that's sad. I'm not good at delivering bad news, so please bear with me on this
Whilst it's tempting to say that "a helmet would have saved his life", it's not always the case. Bike helmets are made of polystyrene foam which is supposed to absorb some of the impact - essentially flattening the roundness of the head to make a bigger contact point at the point of impact, thus reducing the forces on that part of the head. As bicycling is an aerobic exercise (as opposed to motorcycling, which involves you sitting on the motorbike and not much else, at least activities-wise), a bicycle helmet needs to be ventilated or we'd overheat and pass out.
A bike helmet is supposed to be able to reduce injuries to a person falling off their bike from a height of <4 feet at a speed of <12mph. This essentially means a kid falling off his/her bike without any additional forces being exerted, as you've mentioned.
In the case of a van hitting the kid, this immediately takes the helmet out of its certification zone. This hurts to say this, but it's unlikely that the helmet would have made much difference given how they're designed to operate. One other thing to be aware of is that many helmet-certification tests allow the helmet to be taped to the test rig as well as strapped how it should be worn. This is clearly not something we'd do, and nor are we supposed to do it. When independently tested by a UK consumer magazine, many helmets failed to meet the standard (in this case EN1078, for Europe) they were supposedly certified to.
My thoughts and prayers are with his family.
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Title Post: what is the best way of carrying bicycle locks? ?
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