I'm interested in what people are running their tyres at?
Im 95kg and am playing around with the psi.
Cheers
It depends on the weather, terrain, bike, tyre and mood I'm in.
25psi either end worked well off-road Friday morning. Tonight the pub bike was more like 50psi, which was perfect for dodging randoms stepping out into the road.
Always about 30-35psi (tubeless). Get this though, last time I went out ... I didn't even check em! Just squeezed and thought, that's ok.
Thing is, how accurate are pump gauges anyway? Would 30 on mine be 30 on yours?
Oh yeah, altitude may also be a factor.
I go fairly high since I have to do a reasonable amount of road riding to connect stuff up.
I mostly go for ride it and see if it seems okay but as above its always a compromise between usefulness offroad vs getting annoyed on.
What bike, tyres, terrain, riding style…..? Tubeless or tubes?
My 27.5+ hardtail is 13-15psi front, 15-17 rear. My 25mm road bike is 70f, 75r. My other bikes are all somewhere in between. All are tubeless.
What bike, tyres, terrain, riding style…..? Tubeless or tubes?
+1, and also what weight are you? At ~65kg I run 18 front and 23 rear on a 27.5 with 2.6 tubeless tyres. Riding mostly in the Peak and the Lakes so the extra pressure is needed or I get flats. However the point about gauges is true too, mine may not give the same readings as yours. I believe the accepted wisdom is to keep dropping pressures until you get flats or the tyre gets squirmy, then go back up a bit to reach the best pressure for you.
Really came in hoping everyone had just posted photos of meat and pastry.
27-28 tubeless. 90kg
A headless 2 in the shed for music and a 3 for the TV.
60+ in 27" road bike.
30-35 on 24" trials bike... I think.
40…because that’s what I did it the nineties and I’m too stuck in my ways to do anything different.
2.35 on 25mm rim on full sus = 16 to 20 psi
2.35 and 2.6 on 29mm rim on rigid = 14 and 10 psi
Depends on your wieght though.
29x3.0 tubeless 8 front 10 rear
80kg. 2.35x29 front and rear on 30mm rims (I think). Generally high teens front (18-20) and about 5 psi more on the rear.
29 by 2.4 tyres 88kg. 20 to 22 front, 22 to 24 rear. Sometimes a lot less is the going permits or its wet.
I run 30psi (on my pump) in most of my gumtree, iMm pretty heavy and never managed to like the feel of softer tyres. But I think most people go softer.
3.14159 bar, or thereabouts
What pis are you running?
Slightly dehydrated I'd say.... But my tyres are currently between 6<8 psi, but then they are 4.2"
85kgs, 26 Front, 28 Rear in 27.5” 2.4/2.5” tyres. Measured with a Topeak Smart D2.
Varies a bit for where I ride but usually around 18-20 psi front and 22-24 rear. 83kg. In 27.5" 2.4" and 29" 2.3" all tubless. This is mostly for wet, slippy or low grip trails. If the ground is dry and grippy or there are particularly jaggy rocks, I'll add 5-8 psi to these pressures. Measured with Topeak digital gauge which reads much lower than the gauge on my track pump.
Remember to use the same gauge for some consistency as 35psi on your gauge may well be 40psi on mine.
It very much depends on tire/rim width/volume and riding style but if you’re ever feeling the tyre bottom out and the rim get a impact you’re running too low.
Start at something like 40psi, monitor how it rides and then adjust from there to suit. I honestly find a fair bit above the “bottoming” pressure works best as you have nice cushioning, good grip and minimised squirming.
And if air isn't working out consider filling your tyres with jelly.
18/20 on 29x2.4. 60something kg. Thinking I need a bit more though. The something is a bit higher recently.
3.14159 bar, or thereabouts
Soundly beaten to it
92kg, 29x2.4 tyres. Exo as a minimum but really, I know the carcasses breakdown early. Super trail seem somewhat better on the HT but it's early days.
Default is 22Fr & 24Rr with a rimpactpro in the Rr too. Thats for slippy clay with roots and limestone i. The winter. My riding style is such that I rarely flat the front but pinch punctures on the rear are a thing.
+2psi for Fr and Rr when speeds go up in the summer, trail centres or uplift.
80kg riding weight
170/160 29er
32mm IW wheels
2.35 tubeless tyres with inserts
Riding steep, slippy tech mostly
20/24 generally. Softer if it's really minging.
8 front, 10 rear unless it's on the dunes, then its about 3 in each on the fat bike
32 front around 40 rear on the grav grav 700x 42
I mean, as I said, its such a pointless question! Someone says 8psi?? I’d be running on the bloody rims. Does my pump even go that low?
Just set em up how it feels right and adjust accordingly.
Someone says 8psi?? I’d be running on the bloody rims.
not on a fat bike you wouldn't
Someone says 8psi?? I’d be running on the bloody rims.
not on a fat bike you wouldn’t
I’m running 8psi front and rear on the fat bike, sometimes less, though on 4.8” wide tyres it tramlines something wicked at less than 4psi
22 front / 25 rear on the trail bike (29” i30 rims running tubeless 2.5 front and 2.4 out back on exo+). Weighing in at 80kgs, and mostly riding loam and roots. If I were riding anywhere rocky that would be going up by a few psi
23 front, 25 rear, could probably go 2psi lower. 24 and 27 if I'm doing a big ride with heavier backpack. I'm 70kg, Maxxis EXO casing 2.4", 30mm rim, full suspension.
Schwalbe have a calculator with all sorts of inputs, which I used to get a starting point.
95kg harder than an orange, softer than an apple.
A good idea for a thread, although there are lots of variables.
I run:
30mm internal carbon rims
29x2.6 snakeskin Magic Mary on the front, tubeless, no insert. 21psi. Less than that feels squirmy.
29x2.4 Wild Enduro Pro on the rear, or similar width and strength tyre, tubeless, no insert. 25psi. Pressure chosen to bring rim strikes to a rare occurrence.
I weigh 83kg.
Pressures checked with digital gauge, which reads about 1psi lower than my track pump.
On the Scandal which is just used on mix of gentle paths tracks and road, using Conti Cross King and Speed King about 25 front and 28 rear on the Enduro used for everything fun, using Maxxis DHR front and rear about 20 front and 24-25 rear. I'm 75kg
As a few people have suggested, all my pis are 3.141592654 or all the round bits go funny shapes and don't work proper.
In respect of the intent of the question. 😉
65kg
Road - 75-90psi
Gravel 32F, 40R
MTB - 22-30psi depending on tyre width, carcass stiffness and which end of the bike its on.
90kg
Front, 27.5 Magic Mary Super trail 2.4 23psi +-2psi depending on conditions
Rear, 27.5 Hans Damph super trail 2.35 26psi
+-2psi
I think these new versions of the tyres are very good.
I'm about 75kg.
I run Vittoria Barzos most of the time, 2.25 x 29, tubeless, on stans crest rims, 100mm travel xc hardtail.
I have about 17psi on the front and 19 on the rear. i'll go up a couple of psi if riding somewhere rocky, but i hate the feel of anything over 20 and probably end up letting a bit out mid-ride.
road bike has 60/65psi in 28mm tubeless GP5000s.
83kg.
30mm rims.
2.4-ish tyres.
18front, 22 rear.
35 front and rear on gravel bike.
Am I the only person that squeezes the sidewalls, thinks that is about right then rides?
How can anyone run a tyre less than about 20psi? I've tried, and my rims were pinging off everything. I run 2.5 front and a 2.4 rear on both bikes, 30mm internal rim width and genrally mid 20s on all surfaces. Doesn't seem to make any difference to me.
How can anyone run a tyre less than about 20psi? I’ve tried, and my rims were pinging off everything. I run 2.5 front and a 2.4 rear on both bikes, 30mm internal rim width and genrally mid 20s on all surfaces. Doesn’t seem to make any difference to me.
there are weights varying from about 60to 100kg, and pump gauges of questionable calibration. As long as you know what you like and keep it consistent, no problem.
Apart from 40psi fella, assuming he's average weight and on modern sized wheels and tyres...
Someone says 8psi?? I’d be running on the bloody rims.
not on a fat bike you wouldn’t
There you go then - as I said, pointless question. Or pointless answer if tyre/wheel type not specified.
franksinatra
Am I the only person that squeezes the sidewalls, thinks that is about right then rides?
Nope. See the 3rd post.
How can anyone run a tyre less than about 20psi?
Inserts, thick tyres and a disregard for dinging my rims.
Admittedly I'm not quite < 20psi (usually 19psi F / 21 R, I'm ~80kg) but that's on the rockiest stuff the Peak has to offer. I used to get pinches all the time, but modern setups have been pretty revolutionary*. I really love the feeling of heavy tyres thudding / gripping though. If I was fussed about weight / outright performance I'd probably have a different setup and higher pressures.
* NB: wheel pun.
Am I the only person that squeezes the sidewalls, thinks that is about right then rides?
On my current setup, my thumb calibration (vs an actual pressure gauge) is abysmal. I think it's to do with sidewall chunkiness. So I don't rely on that any more on my MTB, although I reckon it probably works OK with thin walled tyres (E.g. road/ gravel).
Am I the only person that squeezes the sidewalls, thinks that is about right then rides?
I occasionally squeeze the sidewall and think, 'Hmmm, too low, but I can't be bothered reaching for my track pump.' I don't die a low PSI death very often.
Its a completely pointless question - hence my 8psi answer.
It's like asking how much pressure do you run in your rear shock (0 in my case)? or what saddle is the most comfortable or pretty much any other set up question..... It's all irrelevant, or rather only relevant to the person answering....
"Am I the only person that squeezes the sidewalls, thinks that is about right then rides?"
No, that's what I do. I have 2 track pumps and they both give a different reading anyway. Quick squidge test is the way. If they need a little added I err on the side of caution knowing I can let a little out if the ride is a little skittish™.
The correct answer is lower than 70, higher than 3 😀
It’s like asking how much pressure do you run in your rear shock (0 in my case)? or what saddle is the most comfortable or pretty much any other set up question….. It’s all irrelevant, or rather only relevant to the person answering….
What colour shall I paint the bathroom? What shall I eat when I get home? Which way should I ride home? How should I fill the next ten minutes?
Whilst i agree it is a very subjective question and depends on a lot of variables, sometimes people struggle with trusting their own judgement so a bit of benchmarking can help.
So in that spirit...
Front Magic Mary SG 2.4 @ 19psi
Rear DHR 2.35 @ 21
Mostly Peak riding.
Whilst i agree it is a very subjective question and depends on a lot of variables
But inst that the point - there no details, without the details and by asking what do you do? The op ends up with tons of useless information, and is no better than before asking the question.
It's like almost any question asked on you tube based FB group - absolutely pointless. I highly suspect that the OP is a genius with the title question - taking the pis?
The op ends up with tons of useless information
It's not useless, though, is it?
I haven't collated (or even read) read all the replies, but they're a straw poll of what riders in the UK are doing at the moment. I'd guess that anyone outside of the relatively narrow 18-28psi window is probably a bit of an outlier. Within that window, adjust according to rider weight, finesse, tyres and terrain. Simple?
Or you could just moan about it?
6'2" 95kg
Maxxis DHF and DHR
Tubes
Santa Cruz Nomad
30psi F&R
30mm internal Spank Oozy wheel has removed most concerns about burping a tyre, and eliminates the need for the air to keep the tyre the correct shape, so assuming "support" isnt really an issue, i tend to go as low as i can get away with without clattering around on the rim.
which is about 20pis F&R, at 95kg ish wet.
Im still always tempted to run them a bit harder on bigger rides, to try and eek out some reduction in rolling reistance, but always regret it pinballing around on rocks and sliding around in the mud.
sounds a bit excessive obsessive there frank.
Minimum 25psi front and rear to keep the lard off the ground.
2.5 EXO+
Rimpact f+r
140mm FS bike.
110kgs of lard.
Not dinged a rim in 5 years now.
85Kg kitted up
Hardtail tubeless
F - 29x2.25 - 21psi
R - 29x2.1 - 24psi
I have been running 20 rear (2.35-2.6) and 18 front (2.5-2.6) on my 29 FS, I’m 71 kg. That feels spot on without squirming and no rim strikes. However, I’ve just knackered my third or fourth tyre in about five months so I’m guessing I need more pressure, which doesn’t feel as good, but will work out cheaper. Latest tyre was a 1.3 kg Vee Snap which is a pretty robust tyre, it did what all the tyres did, sidewall in one spot lost its integrity, bulged out and wouldn’t seal. I blame lockdown, before that, I wasn’t brave enough to do bigger drops. Clearly not big by many riders standards, but big enough to keep me changing tyres that are barely worn.
About 100kg..
Hardtail: FR - 19psi 29x2.5, RR - 19psi 29x2.4 w. Tannus insert
Full bounce - FR - 21psi 29.2.4, RR - 23psi 29x2.4 no insert
Don't ride anywhere rocky really, just a bit rooty but I've managed to learn to pick my lines on them.