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if it feels weird and the tyre feels softish I put a bit more air in, if the tyre feels hardish I let a bit of air out.
This is true but when swapping between tyres they have a very different feel so would be good to have a datum to start at and then adjust from there.
Or do all that soft/hard playing, find something that works and when you pump your tyres up, go to the same and ride, without wondering "Are my tyres softish or hardish?"
Or you can go for a ride and find out that your tyres are hardish after you skid out on a climb or lose it on a root, or find out that they're softish after you dink your rim into a rock when you probably shouldn't have.
Has anyone tried sourcing a low pressure guage and replacing the one on their pump? The issue seems to be that guages are accurate in the middle of their range and a typical 160psi or higher pump guage is no good below about 50psi.
The connection on the back looks about the right size relative to the face but is described as 1/8th or 1/4 which seems too small
The very similar to the type of gauge I was going to try.
The ones I can get from work are 0-35psi, a 50mm face and I think a 1/4" gauge fitting.
I am looking to take my track pump apart this weekend if I get a chance to check connections.
Ah was going to say that the Bontrager scale seemed excessive, but of course this illustrates the difference between gauge and absolute pressures.
Pump up your tyres outside would be my advice - and of course I'd never thought of the fact that fatbike tyres will be more sensitive due to being closer to atmospheric.
Do they have a similar one for altitude corrections?
Ah. So my RennKompressor guage has a thread of about 12mm (1/2"?). I've just replaced the (high pressure) guage on my Silca (which was what got me thinking about this) and that was smaller but i don't think as small as 1/4"
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So my RennKompressor guage has a thread of about 12mm (1/2"?)
How have you measured it ?
I suggest you check thread dimensions on a chart before jumping to conclusions as to what the actual thread size it. That could actually be a 1/4" thread...
How have you measured it ?
I suggest you check thread dimensions on a chart before jumping to conclusions as to what the actual thread size it. That could actually be a 1/4" thread...
er, yes. The SKS will be 1/4 and the Silca 1/8th. Now, could you explain to me why a 1/4" thread is around 12mm?
The thread size relates to the ID of the pipe designed to fit into the thread.
So for example the pipe fitting into a 1/2" BSP thread will be approx 15mm but the thread will measure approx 20mm or 3/4".
Clear as mud isn't it 
Clear as mud isn't it
Plumbing fittings remain an unholy mess of mixed metric and imperial specs - I just can't comprehend how we can still have not properly switched to metric 53 years after the process started.
So that works. £5.80 for a 1/4" 60psi gauge from https://www.ebay.co.uk/itm/253007752858 and I've got a RennKompressor that should be accurate in the 20-40 psi range.
Hopefully the length of the hose and the space at the base of the pump should mean that any tubeless jizz
won't get as far as the gauge.
Plumbing fittings remain an unholy mess of mixed metric and imperial specs - I just can't comprehend how we can still have not properly switched to metric 53 years after the process started.
Mainly because so much of our housing stock still has imperial sized pipework. We are on a private water supply, the alcathene pipe to the house was put in in the 1970s and is 1". We did some work on it a couple of years ago: imperial to metric converter joint, a bit of metric pipework then another converter at the other end!
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