As a matter of interest, what's the margin of error on both from a known calibrated gauge?
Obviously every pump likely to differ slightly and differnt makes/models even more so but be interesting to know.
Electric pumps
- Thread starter carbontrekker
- Start date
Page may contain affiliate links. Please see terms for details.
As a matter of interest, what's the margin of error on both from a known calibrated gauge?
Obviously every pump likely to differ slightly and differnt makes/models even more so but be interesting to know.
Gillstay
Veteran
I cannot recall, but I do know the pencil gauge is way better. The info you want may be on the PCL web site.
I had mine checked at Guildford university as I knew a chap with access to the good stuff.
A chap I knew who raced cars had gone the same route and found his Dads old Dunlop pencil gauge was better than his new electronic one.
Profpointy
Legendary Member
In my regular commuting days I found tyre pressures very important to efficiency (based on my impression rather than measurement) so I'm inclined to believe the claim
Now that said, for home use what is important is a gauge that is consistent. It doesn't really matter if the gauge is wrong providing it gives the same reading for a given pressure.
Profpointy
Legendary Member
I cannot recall, but I do know the pencil gauge is way better. The info you want may be on the PCL web site.
I had mine checked at Guildford university as I knew a chap with access to the good stuff.
A chap I knew who raced cars had gone the same route and found his Dads old Dunlop pencil gauge was better than his new electronic one.
That is worth knowing. I should cross check the electronic gauge I've been using against the old pencil gauge. The lecci gauge reads quite a bit lower the one on my track pump. the numbers matter for car tyres as I'm setting them to the book of words recommendation.
Gillstay
Veteran
https://www.pclairtechnology.com/tyre-care-tools Pencil gauge is to +/- 2psi, so quite impressive to me.
But more importantly and question I asked is what were the readings for electric pump and track pump?
Profpointy
Legendary Member
+- 2psi doesn't seem that great, that's 14% range for a 30psi car tyre
Dogtrousers
Lefty tighty. Get it righty.
Back in the day I never had a pressure guage. I just pumped em up until they felt hard (ooer). It never did me any harm.
I'm off to yell at a cloud now.
I'm off to yell at a cloud now.
ebikeerwidnes
Guru
- Location
- Widnes
Yup - when I was a kid the rules was to pump it up until your Dad couldn't push it with their thumb
sometimes adding numbers to something just makes it over complicated
Windle
Über Member
- Location
- Burnthouses
Or for riding a club 10, pump it up until King Kong couldn't push it in with his thumb.
And if you were using tubs, pump it up so hard that you'd need the army bomb disposal squad standing by at the finish line.
Gillstay
Veteran
Don't know, don't have a electric pump, so not important to me.
Ah, OK. Sorry thought you had. I misread where you said about electronic gauge and thought it was pump.
