Search found 169 matches

by Hot_Air
Fri Sep 18, 2020 6:15 pm
Forum: Staying Alive
Topic: Helmet and gloves
Replies: 19
Views: 173

Re: Helmet and gloves

I agree with @chutzpah. In a new helmet, I always have chipmunk cheeks :)
by Hot_Air
Tue Sep 15, 2020 11:50 am
Forum: Staying Alive
Topic: Bonjour - French safety ratings for your noggin
Replies: 10
Views: 489

Protecting our noggins (ECE 22.06)

:?: Does anyone know if Covid has delayed the new standard (22.06) for protecting our bonces? When are we likely to see the first lids that achieve the new standard? And how does it differ from SHARP?
by Hot_Air
Tue Sep 15, 2020 10:08 am
Forum: Staying Alive
Topic: BBC Highway Code Quiz
Replies: 22
Views: 284

Re: BBC Highway Code Quiz

chutzpah I expect we're essentially in agreement (barring minor semantics). It's worth noting that in Bikeability primary is taught as the default position. Not in my experience but perhaps the teaching varies slightly. And in that thrilling page-turner, How to be a Better Cyclist , the IAM also ad...
by Hot_Air
Mon Sep 14, 2020 9:03 am
Forum: Staying Alive
Topic: Helmet and gloves
Replies: 19
Views: 173

Re: Helmet and gloves

Horse wrote: Fri Sep 11, 2020 6:00 pm And you need to know what a good fit is! [...] www.sharp.co.uk is worth checking.
And SHARP gives a handy guide about how to know the right fit, etc: https://sharp.dft.gov.uk/get-the-right-fit/ :thumbup:
by Hot_Air
Mon Sep 07, 2020 5:45 pm
Forum: Staying Alive
Topic: BBC Highway Code Quiz
Replies: 22
Views: 284

Re: BBC Highway Code Quiz

distance for a cyclist riding form the kerb on a quiet road was one I got wrong. :?: It looks like the revised Highway Code will make it normal practice to ride in the centre of the traffic stream (Primary position). Doesn't it? Even as a cyclist, I'm only in Primary when required. The new wording ...
by Hot_Air
Mon Sep 07, 2020 3:50 pm
Forum: Staying Alive
Topic: Airbags expanding
Replies: 85
Views: 2771

Re: Airbags expanding

Re rotational forces, Leatt have incorporated this to motorcycle and cycle helmets. Possibly others. Bell is ahead of the rotational curve, with three lids for regular road riding (and track) that have MIPS. Also, Shoei has what it calls a Motion Energy Distribution System, but it's only in a dirt ...
by Hot_Air
Mon Sep 07, 2020 1:43 pm
Forum: Staying Alive
Topic: Airbags expanding
Replies: 85
Views: 2771

Re: Airbags expanding

And their answer is "50kph, no appreciable mitigation of injury severity can be expected". You'll need to read it (PPT) for context. Thanks Horse, and I'm happy to change my opinion as new evidence emerges. Such is science! (Though I haven't figured out how to find the PPT; such is my IT skill :lol...
by Hot_Air
Mon Sep 07, 2020 10:41 am
Forum: Staying Alive
Topic: Airbags expanding
Replies: 85
Views: 2771

Re: Airbags expanding

It may not be meaningful to regular riders – because you have to be clued-up on odds ratios and comfortable with kilonewtons – but the evidence is clear. And why else would MotoCAP bother with impact testing or Ron Woods have proposed Level 3 armour? Having read the publications in detail, and with ...
by Hot_Air
Sat Sep 05, 2020 10:48 am
Forum: Staying Alive
Topic: Airbags expanding
Replies: 85
Views: 2771

Re: Airbags expanding

It's meaningful. The odds ratio figures out if a particular exposure (in this case, maximum transmitted force) is a risk factor for a particular outcome (impact injury). In summary: Bianca Albanese et al found the lower the armour's maximum transmitted force, the lower the risk of impact injury. But...
by Hot_Air
Thu Sep 03, 2020 2:12 pm
Forum: Staying Alive
Topic: Airbags expanding
Replies: 85
Views: 2771

Re: Airbags expanding

Thanks, I haven't seen John Hinds' video; have you got a link? And that could be an issue. Not necessarily. Existing armour could already be up to scratch: some SAS-Tec armour already exceeds CE2 by 40-50% and I think the best of D30's range also exceeds CE2 by a considerable margin. For example, Kl...
by Hot_Air
Thu Sep 03, 2020 10:10 am
Forum: Staying Alive
Topic: Airbags expanding
Replies: 85
Views: 2771

Re: Airbags expanding

He has, and I agree: a few millimetres of viscoelastic ain't gonna win against a high-speed impact with a truck. But I'd add that (for lesser-but-all-too-common crashes) a small change in the CE-standard could make a big difference. Bianca Albanese et al 's work (2017) is hugely significant because ...
by Hot_Air
Wed Sep 02, 2020 4:30 pm
Forum: Staying Alive
Topic: Airbags expanding
Replies: 85
Views: 2771

Re: Airbags expanding

You need a referent. Well, I've read (in full) the evidence published to date. And I reckon airbags give valuable protection to the torso for impacts <30 mph. In contrast, there's growing evidence that regular armour is ineffective because the CE-standards need beefing up (or, in the case of back p...
by Hot_Air
Wed Sep 02, 2020 3:28 pm
Forum: Staying Alive
Topic: Airbags expanding
Replies: 85
Views: 2771

Re: Airbags expanding

:thumbup: Correctly, the D-Air, Tech-Air and E-Turtle are all CE-certified as motorcycle airbags (EN 1621-4). What’s more, the Dainese certified its D-Air Street to the higher CE standard (Airbag Level 2). :?: But In&Motion isn’t CE-marked (yet it’s sold as personal protective equipment). The MCN ar...
by Hot_Air
Mon Aug 31, 2020 5:43 pm
Forum: Staying Alive
Topic: Airbags expanding
Replies: 85
Views: 2771

Re: Airbags expanding

Airbags don't solve everything. They don't purport to. If they help a bit then its surely just down to the individual on whether that extra bit of help is worth the expense. I agree. And nobody's claiming that D-Air or Tech-Air will prevent a broken leg :) . I've never heard anyone talk about airba...
by Hot_Air
Sun Aug 30, 2020 5:50 pm
Forum: Staying Alive
Topic: Airbags expanding
Replies: 85
Views: 2771

Re: Airbags expanding

I was wrong: there's a CE standard for motorcycle airbags (EN 1621-4). It may have been written in days of yore - when tethered airbags were trendsetting - but it specifies minimum requirements for deployment speed, protection and coverage. It contains the requirements for the performance of the sys...
by Hot_Air
Sun Aug 30, 2020 2:43 pm
Forum: Staying Alive
Topic: Airbags expanding
Replies: 85
Views: 2771

Re: Airbags expanding

Odd, isn't it? Maybe it's because a British engineer, Colin Ballantyne, headed the Tech-Air programme (not a marketeer)?  And the engineers responsible for Tech-Air systems are probably a different gang to the clothing marketers, with a different philosophy. Teams vary in a big company, and – I'm sp...
by Hot_Air
Sun Aug 30, 2020 10:02 am
Forum: Staying Alive
Topic: Airbags expanding
Replies: 85
Views: 2771

Re: Airbags expanding

Advertising? Sure, the Asolo and Molvena mobs have gone to the marketing mattresses. When Dainese said the Smart Vest was like wearing seven back protectors, Astars answered back: its Tech-Air was akin to eighteen. A* say: Offering instantaneous, high-pressure inflatable protection Tech-Air® gives t...
by Hot_Air
Sun Aug 30, 2020 9:36 am
Forum: Motorbike chat
Topic: recommendations for delivering a motorcycle
Replies: 16
Views: 344

Re: recommendations for delivering a motorcycle

Have you considered a forklift?

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by Hot_Air
Sat Aug 29, 2020 9:12 pm
Forum: Staying Alive
Topic: Airbags expanding
Replies: 85
Views: 2771

Re: Airbags expanding

Helite's E-Turtle looks like it could protect the pelvis in some circumstance, but won't save the pelvis from being slammed forwards into the bike. Protection against femur fractures seems tricky (is there anything that can?). I've kept saying that back protectors are only of use in a limited subset...
by Hot_Air
Sat Aug 29, 2020 8:45 pm
Forum: Staying Alive
Topic: Abrasion resistance
Replies: 69
Views: 2402

Re: Abrasion resistance

The Spin Doctor wrote: Fri Aug 28, 2020 8:54 pm guess what you wear on your knees? :)
I wear knee warmers (who doesn't?) under my leathers to improve conspicuity :mrgreen:

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