According to the Vittoria app, given my weight, I should have my tyre pressure at 140. This is fine during the summer but maybe not so much with the winter coming in. I knocked it back to 120 this week. Feels a little more comfortable on the road, no frost or ice yet so I don't know if it sticks to the road better. Any point in lowering it further? Is there an optimum level for pressure in potentially icy conditions?
Tyre Pressure
- Thread starter harveymt
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User6179
Guest
Would depend on your weight and size of tyre ?
I like Skol
A Minging Manc...
- Location
- Sunny Ashton-under-Lyne
I am surprised by this high pressure. I'm no expert but find anything above the 110-120psi range unnecessary, In fact I find little difference between 90-110 so usually only go for a pressure between 100-110 so it will still be at a decent pressure next time I take the road bike out.
I am around 95kg, what do you weigh and what tyre & tyre size are you using?
I am around 95kg, what do you weigh and what tyre & tyre size are you using?
If you have a bicycle with drop bars, the weight distribution is about 40/60%, front/rear. That means that the front tyre does not require as much pressure as the rear. For 140 Lbs pressure at the rear I would assume that you are using 19 mm tyres and have a very high weight!
U
User6179
Guest
The only thing about the 40/60% recommendation is that when you go downhill the weight shifts forward to 60/40
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User6179
Guest
You would be better on 25s imo if you have the clearance , I would not go much below 120 rear and 100 on front at your weight on 23s , on 25s you could get away with 100/90 and would feel a lot smoother .
jayonabike
Powered by caffeine & whisky
- Location
- Hertfordshire
I'm around 90kg, run my tyres at around 120 in the summer and drop it down to around 100-105 this time of year
the_mikey
Legendary Member
- Location
- South Gloucestershire
85kg and I run 23c at 105 psi each.
25c at 115psi each.
25c at 115psi each.
Jdratcliffe
Well-Known Member
- Location
- Redhill, Surrey
umm in 168 pounds ? 12 stone not sure about the kg conversion and i run cont 23mm 4000s (summer)and 4 seasons (winter) at 120 front and 125 rear ? is that bad? seems high from what others have written...
ChrisEyles
Guru
- Location
- Devon
Gah, sod's law, isn't it?!
I run 32c at 85-90psi on my commuter, and 27x1,1/4s (almost the same as a 32c) at 100psi on my Sunday best ten speed. By the book this is a high-ish pressure for the tyre size and for my weight (68kg). However, I do (psychologically?) seem to find it harder work at lower pressures, and constantly have the feeling that I must have got a slow puncture and be heading for a full on flat.
Can't say for sure (no basis for comparison), but I imagine frame material will also make quite a difference to how "hard" your tyres feel when riding? I'm on steel frame/forks, for what it's worth.
I run 32c at 85-90psi on my commuter, and 27x1,1/4s (almost the same as a 32c) at 100psi on my Sunday best ten speed. By the book this is a high-ish pressure for the tyre size and for my weight (68kg). However, I do (psychologically?) seem to find it harder work at lower pressures, and constantly have the feeling that I must have got a slow puncture and be heading for a full on flat.
Can't say for sure (no basis for comparison), but I imagine frame material will also make quite a difference to how "hard" your tyres feel when riding? I'm on steel frame/forks, for what it's worth.
John the Monkey
Frivolous Cyclist
- Location
- Crewe
the_mikey
Legendary Member
- Location
- South Gloucestershire
The pressures seem quite high for 23c, you're lighter than me too, I reckon you'd be OK on100psi
John the Monkey
Frivolous Cyclist
- Location
- Crewe
If you like riding them, no, it's not bad.
If you're rattling your fillings out, and praying for the sweet release of oblivion, then yes, it's bad.
Tyre pressures are something of a personal choice, and bear a degree of experimentation. At a similar weight to you, I like my GP 4000s[1] at a lower pressure, personally (100/110 maybe) but that could well make you feel like you're wallowing. I usually find that Continental's recommended pressures are a good place to start - too harsh, try 10psi lower, too soft, try a bit higher.
[1] But I like Pro Race, and Krylion Carbon more, tbh
