Search found 1151 matches

by tim-b
8 Jan 2020, 2:18pm
Forum: On the road
Topic: Why wear black?
Replies: 776
Views: 21100

Re: Why wear black?

Hi We might take away the message from that that it's okay to wear hi-viz, and it's okay not to. Same for helmets. And that is the state of the actual evidence The BBC are around 1:3 on the hi-viz, but more emphatic on helmets where they're visible in the tandem ident BBC Cyclist Ident link BBC Tand...
by tim-b
8 Jan 2020, 7:37am
Forum: Does anyone know … ?
Topic: Roof racks
Replies: 7
Views: 397

Re: Roof racks

Hi
I'd try a specialist company, e.g. https://www.roofbox.co.uk/roof-bars/. I think that you probably want roof bars, as opposed to a roof rack, but companies like these should be able to sort something out for you
Regards
tim-b
by tim-b
5 Jan 2020, 10:31pm
Forum: Bikes & Bits – Technical section
Topic: Fork crown race fitting
Replies: 22
Views: 673

Re: Fork crown race fitting

Hi
On a 1 1/8 steerer (which is a legacy diameter), the SHIS standard for the fork crown seat is nominally 30mm. The actual dimension should be 30.015mm to 30.075mm (https://blue.canecreek.com/resources/products/headsets/PDFs/canecreek-shis-poster.pdf)
Regards
tim-b
by tim-b
5 Jan 2020, 10:08pm
Forum: Bikes & Bits – Technical section
Topic: Tyre sizes - will this fit?
Replies: 13
Views: 417

Re: Tyre sizes - will this fit?

Hi The 622 and the 25C is the important bit, the rest is manufacturing-speak ETRTO recommend a 42mm minimum width with 25C rims, although individuals report that they have gone narrower You also need to decide what's important: Rolling resistance, on-road grip, off-road grip, puncture-resistance, co...
by tim-b
3 Jan 2020, 5:53pm
Forum: On the road
Topic: Why wear black?
Replies: 776
Views: 21100

Re: Why wear black?

Hi the fear is it creates an image that cycling requires specialised safety equipment because its perceived as risky or riskier activity than using a car We all seem to forget that most modern cars have a stack of specialised safety equipment including: ABS Electronic Stability Control Electronic Br...
by tim-b
2 Jan 2020, 5:07pm
Forum: Does anyone know … ?
Topic: Can anyone identify this head badge?
Replies: 36
Views: 1933

Re: Can anyone identify this head badge?

Hi
Warwick?
Elswick (not Hopper)?
Regards
tim-b
by tim-b
1 Jan 2020, 7:48am
Forum: Helmets sub-forum
Topic: Helimeds.
Replies: 212
Views: 4697

Re: Helimeds.

Hi BTW I finished watching an episode (the episode?) of Helimeds this morning and the young lad's interview at the end was pretty powerful stuff. It was this one: Emergency Helicopter Medics Series 3 Episode 8 "In Cambridgeshire, the heli-medics race to treat a cyclist with a time-critical brai...
by tim-b
31 Dec 2019, 12:00pm
Forum: Helmets sub-forum
Topic: Helimeds.
Replies: 212
Views: 4697

Re: Helimeds.

Hi What really irks is the people who see helmet discussion as futile and boring It's not that (and it's often lively :D ), but I do find the constant pejorative references to "foam hats", "plastic hats", etc puerile and boring. Those terms wouldn't be acceptable in a genuinely s...
by tim-b
31 Dec 2019, 11:36am
Forum: Bikes & Bits – Technical section
Topic: Stuck seat posts, industrial service?
Replies: 27
Views: 904

Re: Stuck seat posts, industrial service?

Hi
Mick F +1
And it's also very prevalent on carbon bikes too

Because people don't see the carbon fibres as good conductors of electricity in combination with being uncertain whether grease is safe on CF
Regards
tim-b
by tim-b
31 Dec 2019, 6:56am
Forum: Does anyone know … ?
Topic: Phd application form - subject 'Reducing the ice hazard for cyclists'
Replies: 28
Views: 1540

Re: Phd application form - subject 'Reducing the ice hazard for cyclists'

Hi Just like The Dutch have, and it works All 275m of it (and 15m of that is in France) is very experimental at the moment. It's 75% of the efficiency of roof-mounted panels and the flat panel angle is disadvantageous. I'm not clear if that figure is before you cover it with pedestrians and cyclists...
by tim-b
30 Dec 2019, 8:12am
Forum: Health and fitness
Topic: Sleep Apnea
Replies: 11
Views: 743

Re: Sleep Apnea

Hi It's good to hear that you have your licence back. I should add for anyone else reading this that I would take the GPs advice on completing the form because of the wording at section 6 "Obstructive Sleep Apnoea Syndrome" as distinct from plain "Sleep Apnoea" https://assets.pub...
by tim-b
30 Dec 2019, 7:16am
Forum: Health and fitness
Topic: Sleep Apnea
Replies: 11
Views: 743

Re: Sleep Apnea

Hi Exactly my experience. The form said ' have you ever suffered from.........?" My experience as well; I have bus and lorry licences and have to complete a medical and form every 5 years. Despite having the same condition declared on every form ever, someone in their wisdom decided that it was...
by tim-b
29 Dec 2019, 7:44am
Forum: Helmets sub-forum
Topic: Helimeds.
Replies: 212
Views: 4697

Re: Helimeds.

Hi What troubles none helmet wearers is that helmet wearing in the UK headed(sorry)by helmet mupanufacturers and organisations such as Headway will lead to compulsion based on bad or no science. Maybe it's time for some good science? Cyclists could pay money into a national organisation that works w...
by tim-b
29 Dec 2019, 7:10am
Forum: Does anyone know … ?
Topic: Legality of blue lights
Replies: 15
Views: 1104

Re: Legality of blue lights

Hi Blue lights on vehicles are not illegal providing that they don't move, don't flash automatically and don't dazzle. You could fit a steady blue light to fixed windscreen washer nozzles, but not the wiper arms. However you'll note the double negative in the first sentence and they aren't necessari...