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Spiderman
29-01-05, 03:21 PM
Tyre pressure gague.

not a digital one tho... ive heard that they are rubbish.
Looking to get one this weekend so replies are appreciated :)

Jabba
29-01-05, 03:26 PM
not a digital one tho... ive heard that they are rubbish.

:? From where did you hear this? They are far better and more accurate than other sorts.

Try the £9.99 one from Halfords :thumbsup:

jonboy
29-01-05, 03:28 PM
Just for your info, Ride magazine gave the Halfords digital gauge (about a tenner I think) a big thumbs up and the Recommended Buy badge. All gauges are only accurate to approx 1psi unless you pay big money.


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timwilky
29-01-05, 03:32 PM
I abandoned my digital one today. It said I had 73psi in my front tyre and would not turn off. so after it auto switched off I tried again and it said 30psi

kept putting in more air and it said 29. Looks like I need a new one

This one cost £5.63 + vat from cpc. looks like I will replace it with their slightly more expensive £5.84 one (http://cpc.farnell.com/productimages/cpc/standard/AR71606.jpg)

Spiderman
29-01-05, 03:37 PM
OK... thanks guys.

Cant remember where but i've read a few places that the digi ones are about as acurate as the ones in the petrol stations.

Now you guys are gonna tell me thoase are the most accurate yeh? :lol:

And ride gave the halford jobby a recomended sticker too.... hmmmm.
I'm open minded enough to try em for sure.

Anyone else wanna add to the above please feel free, the more i know the happier i'll feel when i part with my cash. :)

Spiderman
29-01-05, 03:39 PM
I abandoned my digital one today. It said I had 73psi in my front tyre and would not turn off. so after it auto switched off I tried again and it said 30psi

kept putting in more air and it said 29. Looks like I need a new one

This is my greatest worry... just believing a display. could this be caused by the batteries wearing down?
Or do the digi one have a finite lifespan?

Jabba
29-01-05, 03:41 PM
Cant remember where but i've read a few places that the digi ones are about as acurate as the ones in the petrol stations.

That's just completely wrong, and how rumours start. Digi-guages are often certified accurate to +/- 0.5psi. Some need to be re-zeroed occasionally by holding the guage lightly againt the tyre valve until some air passes over the end.

It is fair to say that the simple pencil guages are often more accurate than the dial sort.

You're right about petrol station one's being inaccurate, though. And you have to allow for the fact that the tyres will be warm because you've driven/riden there.

PoRk ChOp
29-01-05, 07:07 PM
I have got a Halfords 9.99 one, nice and easy to use and seems to be accurate enough

jonboy
29-01-05, 08:03 PM
I abandoned my digital one today. It said I had 73psi in my front tyre and would not turn off. so after it auto switched off I tried again and it said 30psi

When I first got my footpump (with analogue standard dial) it went a bit crazy telling me I had around 60psi in the front tyre, then 30 etc. After giving it a few more pumps it's been fine ever since - weird huh? :lol:


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embee
29-01-05, 08:29 PM
have a look here in their "product tests".

http://www.autoexpress.co.uk/

There are tests for analogue and digital gauges. Don't know how much to trust their findings, but at least they've tried. :?

Analogue - good one was Draper 69924 for £8
Digital - Accutire seemd to do quite well, even their cheapest at £8, or a £11 version.

For bikes you need to consider access to the valve. :-k

The Mass
29-01-05, 08:36 PM
I had the Halfords gauge for Chrimbo - works a treat! :thumbsup:

Spiderman
29-01-05, 09:27 PM
thanks for all the help guys.

Nice one for the link embee :)

Guess i'll be after that accurite one then. Cheap and spot one, cant go wrong really.

Warren
30-01-05, 01:13 AM
i got the halfords one.
i also have the motrax one (the keyring one for a tenner) for under my seat.

both are spot on.
i dunno about petrol garages. ive used BP ones and tested them after and they seem to be spot on (ive used about 5 BP garages in this way)

the older looking air machines are a bit out tho i find.

wheelnut
30-01-05, 10:29 AM
I find the halfords one are fine, mine is accurate enough for me and consistent.

I think Halfords gear is made by Facom, Draper and Teng anyway, all decent brands.

You cannot rely on garage forecourts, but the main dealer should have any tools and gauges calibrated.

ophic
30-01-05, 11:57 AM
i found using a pencil type gauge a pain in the proverbial due to the front disc brakes. Got a small halfords digital meter now which works a treat. No ideas about accuracy but the tyres have never let me down so far... well, not due to tyre pressure anyway... :oops:

embee
30-01-05, 02:36 PM
I suspect the "digi gauges are rubbish" beliefs are like so many myths.

There was probably some truth in this when they first came on the market, but when you look at the technology behind them there's no fundamental reason why they should be anything other than pretty accurate.

I built an electronic carb balancing device using a differential pressure transducer, which is the same technology as the digi tyre gauges. OK it was possibly slightly better quality componentry (voltage regulator, resistors etc), but not dramatically (cost £25 or so to build). When I calibrated it the sensitivity was well within 1% of that stated for the transducer in the spec sheet.

Simple and easy to use is worth a couple of percent inaccuracy! :wink: