DaveReading
Don't suffer fools gladly (must try harder!)
- Location
- Reading, obvs
Having had problems with a sticky valve on a car tyre recently, I can vouch for the fact that a Joe Blow pumps those up very efficiently too.
Tyre Pressures
- Thread starter MALT
- Start date
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OP
OP
MALT
Active Member
Thanks for the flurry of replies recommending the Joe Blow, albeit a bit late, as I had bought the Aldi pump before seeing any of these replies!
Getting back to the original point, the rear tyre pressure that I was getting with my frame-mounted pump was way in excess of the stated maximum for the tyre, so thanks very much for suggesting the track pump (as it gives me a gauge and shows me what sort of squashability to expect at the correct pressure, interestingly the rear tyre is more pliable than the front tyre at the same pressure, despite appearing to be identical size make etc.). Having lost a family member through over inflation of a car tyre by a tyre fitter, a couple of minutes after leaving the workshop, I realise how dangerous over-inflation of tyres is and how fortunate I have been.
Getting back to the original point, the rear tyre pressure that I was getting with my frame-mounted pump was way in excess of the stated maximum for the tyre, so thanks very much for suggesting the track pump (as it gives me a gauge and shows me what sort of squashability to expect at the correct pressure, interestingly the rear tyre is more pliable than the front tyre at the same pressure, despite appearing to be identical size make etc.). Having lost a family member through over inflation of a car tyre by a tyre fitter, a couple of minutes after leaving the workshop, I realise how dangerous over-inflation of tyres is and how fortunate I have been.
Sorry to hear about the above accident.
The only downsides with any cheaper pump are the lack of pressure they usually provide, the longevity of the hardware and the gauge calibration. You can't always guarantee that the gauge is correct and will stay that way. You get what you pay for unfortunately.
The only downsides with any cheaper pump are the lack of pressure they usually provide, the longevity of the hardware and the gauge calibration. You can't always guarantee that the gauge is correct and will stay that way. You get what you pay for unfortunately.
Rim tape can be a pain in the butt sometimes, I kept getting mystery punctures on the inside of the innertube and could find no cause for it, then one day I noticed that the rim tape was moving very slightly to reveal a spoke hole and was hardly noticeable when checking to ensure the inner tube was correcttly fitted in the tyre before pumping it up.
My recent experience was when I renewed my tyres, my old ones had only one puncture in 3500 miles, same make of tyre but brand new wheels and rim tape and I had four punctures in a week and could not find a cause, all on the inside of the inner. When I got chance I matched all the inner tubes together and found the punctures had all happened within 2 inch of each other. When I checked the wheel, I discovered the rim tape was doubled over on itself for about 3 inches and it must have come like that from the factory as I had not fitted it and you could hardly spot it but it was still covering the spoke holes so I do not know how it was puncturing the innertube. The main problem to make it hard to spot was it was a glossy black rim tape in a glossy black rim and the two items merged, so from now on, I always fit a different colour rim tape to the rim.
My recent experience was when I renewed my tyres, my old ones had only one puncture in 3500 miles, same make of tyre but brand new wheels and rim tape and I had four punctures in a week and could not find a cause, all on the inside of the inner. When I got chance I matched all the inner tubes together and found the punctures had all happened within 2 inch of each other. When I checked the wheel, I discovered the rim tape was doubled over on itself for about 3 inches and it must have come like that from the factory as I had not fitted it and you could hardly spot it but it was still covering the spoke holes so I do not know how it was puncturing the innertube. The main problem to make it hard to spot was it was a glossy black rim tape in a glossy black rim and the two items merged, so from now on, I always fit a different colour rim tape to the rim.
youngoldbloke
The older I get, the faster I used to be ...
That's surprising! What was the maximum for the tyre? I run my 700 x 23s, and 25s regularly up to 120 psi - and the max on tyre is higher than that. Another Joe blow user here - there was no way I could get that sort of. pressure with a frame pump. Before I got the JB, without having a pressure gauge I thought my tyres were really hard at what turned out to be barely 80 psi! What sort of frame pump have you got? BTW I really doubt the original puncture was caused by over-inflation. One way to check for sharps is to go around the rim/tape/inside the tyre with a pad of cotton wool, it will snag on the tiniest point.
OP
OP
MALT
Active Member
Max tyre pressure is 7.5Bg (14.7psi x 7.5 = 110.25psi).
Frame pump is an "II Push On Frame Fit" Cost about £20 from Cycle King.
This pump is very efficient.
It appears to be able to pump the tyre a good 10% firmer than the recommended maximum, although this is just a guesstimate. I had been aiming to get the tyre pumped up solid, so just kept going until the tyre was hard, obviously this is a mistake.
Frame pump is an "II Push On Frame Fit" Cost about £20 from Cycle King.
This pump is very efficient.
It appears to be able to pump the tyre a good 10% firmer than the recommended maximum, although this is just a guesstimate. I had been aiming to get the tyre pumped up solid, so just kept going until the tyre was hard, obviously this is a mistake.
