Search found 538 matches

by Airsporter1st
23 Jan 2019, 6:43pm
Forum: Campaigning & Public Policy
Topic: Elderly drivers: when is it time to hand over the car keys?
Replies: 168
Views: 19300

Re: Elderly drivers: when is it time to hand over the car keys?

An incompetent young or old driver might engage gear in automatic, the vehicle the then moves In a manual they might stall the engine :? You cannot engage gear in an auto unless your foot is on the brake and you overcome a detent mechanism. The vehicle will only creep (if it moves at all) when you ...
by Airsporter1st
23 Jan 2019, 6:33pm
Forum: Bikes & Bits – Technical section
Topic: Unscrewing presta valve after pumping
Replies: 52
Views: 5880

Re: Unscrewing presta valve after pumping

PS; I use Lezyne pumps and they have screw-on heads and they are brilliant. Not stupid at all. LBS near me uses lezyne track pumps and to keep the wear down on the adaptors they have two; one set up for presta and the other for Schrader. In daily use the adaptor threads and seals last about a coupl...
by Airsporter1st
23 Jan 2019, 1:15pm
Forum: On the road
Topic: black ice
Replies: 52
Views: 9407

Re: black ice

I think you misunderstand me - I was simply trying to answer the O.P. with a a definitive figure and then pointing out why that figure may not be valid for cyclists. My apologies if I sounded confrontational - certainly was intended to be . I recall about 12 years ago (crikey time flies) leaving ho...
by Airsporter1st
23 Jan 2019, 1:09pm
Forum: Campaigning & Public Policy
Topic: Elderly drivers: when is it time to hand over the car keys?
Replies: 168
Views: 19300

Re: Elderly drivers: when is it time to hand over the car keys?

I took that as meaning the missing third pedal is the clutch. The habit of changing gears at certain speeds / engine noise sticks. So you press a pedal to make the imaginary gear change when you think it should be. However the only pedal available to the left foot is the brake not a clutch pedal. I...
by Airsporter1st
23 Jan 2019, 10:20am
Forum: Bikes & Bits – Technical section
Topic: Change in Shimano Chainrings ?
Replies: 8
Views: 438

Re: Change in Shimano Chainrings ?

From what you say, it sounds as if there is a dimensional mismatch, resulting in a loss of the spigot fit which centralises the rings. Although the bolts will still do their job, the chainring may not be very well centralised about the axis. Needless to say, if I have not understood the problem then...
by Airsporter1st
23 Jan 2019, 10:13am
Forum: Campaigning & Public Policy
Topic: Elderly drivers: when is it time to hand over the car keys?
Replies: 168
Views: 19300

Re: Elderly drivers: when is it time to hand over the car keys?

What is more likely on an auto is accidentally braking with the left foot trying to depress a non-existent clutch. That though can happen to anyone, regardless of age, out of simple habit if they are a recent convert. Interesting. I acquired my first automatic 6 weeks ago and anticipated having to ...
by Airsporter1st
22 Jan 2019, 8:23pm
Forum: Helmets sub-forum
Topic: The Science of Cycle Helmet Safety
Replies: 50
Views: 2205

Re: Is there a multi impact helmet?

a 'polystyrene soup dish' not much different to a cycle helmet can meet all the primary impact tests required for a motorcycle helmet. The main exceptions are that the motorcycle helmet has to cover more of the head (esp at the back of head near the neck) and is also subjected to a 'spike' test whi...
by Airsporter1st
22 Jan 2019, 8:15pm
Forum: Campaigning & Public Policy
Topic: Elderly drivers: when is it time to hand over the car keys?
Replies: 168
Views: 19300

Re: Elderly drivers: when is it time to hand over the car keys?

And why might that be? You can drive an auto on a manual licence but not the other way round, that implies that automatics are easier to drive as indeed is my experience. I would have thought that, too. But several on the R4 prog today had pressed the accelerator instead of the brake and I know a n...
by Airsporter1st
21 Jan 2019, 6:33pm
Forum: On the road
Topic: black ice
Replies: 52
Views: 9407

Re: black ice

Every car I’ve driven which had an outside temperature warning device, alarmed at 4 degC. I assume there is good reason for choosing that figure. The problem for a cyclist is that in the manjority of cases, they don’t monitor outside temperature continuously, although that is possible with a smartp...
by Airsporter1st
21 Jan 2019, 2:22pm
Forum: On the road
Topic: black ice
Replies: 52
Views: 9407

Re: black ice

Every car I’ve driven which had an outside temperature warning device, alarmed at 4 degC. I assume there is good reason for choosing that figure. The problem for a cyclist is that in the manjority of cases, they don’t monitor outside temperature continuously, although that is possible with a smartph...
by Airsporter1st
21 Jan 2019, 2:13pm
Forum: Campaigning & Public Policy
Topic: Elderly drivers: when is it time to hand over the car keys?
Replies: 168
Views: 19300

Re: Elderly drivers: when is it time to hand over the car keys?

I used to know quite a few old people who used the term "crumblies" about themselves. Offence is subjective in many things and I suspect such a word is treated as a sign of endearment towards the group of old people. Besides the poster who used it might be of an age that would fit into th...
by Airsporter1st
20 Jan 2019, 8:18am
Forum: Campaigning & Public Policy
Topic: Elderly drivers: when is it time to hand over the car keys?
Replies: 168
Views: 19300

Re: Elderly drivers: when is it time to hand over the car keys?

Some old people can hardly walk, hardly read, have to ask the cashier to count the coins for them They probably should not be driving, right? I plan to live on the edge of town in retirement, I am planning now, shall be glad not to drive any more, maybe I shall get a trike Reduced maximum speed lim...
by Airsporter1st
18 Jan 2019, 7:17pm
Forum: Helmets sub-forum
Topic: The Science of Cycle Helmet Safety
Replies: 50
Views: 2205

Re: Is there a multi impact helmet?

I think the main advantage of ensuring a helmet is always replaced after even the slightest impact is increased sales.
by Airsporter1st
16 Jan 2019, 3:38pm
Forum: Does anyone know … ?
Topic: First Posters Seeking Advice - Genuine or Not?
Replies: 14
Views: 638

Re: First Posters Seeking Advice - Genuine or Not?

I've seen exactly the same thing happening on other furums (fora?). I think what happens is that someone uses a search engine to answer a question and up pops the forum, amongst other hits. They then sign up and ask their question, but with no real conviction and no lasting interest in whatever else...
by Airsporter1st
16 Jan 2019, 8:16am
Forum: Does anyone know … ?
Topic: DI2 not using the last two gears
Replies: 10
Views: 934

Re: DI2 not using the last two gears

I am just heading out of the door so will confirm later but I just checked the battery on my Trek Madone using the iPhone app. After turning off the bluetooth (to be able to use the DI2 shifters) I went through the rear cassette gears using the right hand shifter and it stopped at the 3rd from last...