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Old October 10th 18, 11:33 PM posted to rec.bicycles.tech
Roger Merriman[_4_]
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Posts: 385
Default MTB 29*2.20 65 PSI

Emanuel Berg wrote:
Today I had the first flat tire with the
29*2.20 MTB. This presta valve stuff is
obviously alien to me at this point, but
I managed to make it full again.

1) Some people say you don't even need an
adapter, you can just use
a Dunlop interface.

2) But of course I do have an adapter, only it
wasn't a pleasant thing fiddling with it
back and forth. I'm getting a quality pump
soon, God willing.

3) On the tire, it says 65 PSI. This must be
some theoretical possibility in a lab
setting with all brand new stuff, right?
Like when you buy a tent for three persons,
which is barely big enough for yourself to
sleep comfortably in?

4) Tires are 29*2.20 or 57-622. What is a good
PSI for going on asphalt ~98% of the time?

5) Is there a difference what PSI one would
like in the front and rear tires?

TIA


3 yes that’s the maximum pressure, unwise to go beyond it really, though
since most pumps will give slightly different readings..

4 my commute bike is mostly on tarmac and 40psi seems to work, in that it’s
firm enough for my and commuting gear with out being rock solid.

5 depends on use I generally don’t alter the pressures F/R since being a
old MTBer I tend to shift my weight around so the % over each wheel differs
depending on the moment.

Roger Merriman

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