Richardmid1
Regular
My tyres say 100 psi minimum 145 max, what would you guys use? Max? Or would that be too harsh?
Road bike tyre pressure
- Thread starter Richardmid1
- Start date
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Sittingduck
Legendary Member
- Location
- Somewhere flat
A few variables will come into play here but I'd say if you aim for 110-120, you won't be far wrong. Trial and error? Give them a try at 100, 120, 145 and see which suits?
Richardmid1
Regular
Thanks for that. I'm around 12.5 stone if that helps. I've read some use more in the rear is this good practice?
Sittingduck
Legendary Member
- Location
- Somewhere flat
I believe it's quite common. I tend to run mine at about 110 in both. Although used to run them both at 120 and the difference is minimal.
MattHB
Proud Daddy
- Location
- Deepest darkest Dorset
If you're heavy, go higher. Put in enough to minimise tyre deformity.. That might not be much if you're a fly-weight 
Davidc
Guru
- Location
- Somerset UK
What Sittingduck says - for all tyres.
The maximum and minimum are safe working limits, not sensibly to be ignored.
The maximum and minimum are safe working limits, not sensibly to be ignored.
black'n'yellow
Guest
at 12.5st, I'd start with 100psi and go from there. Difficult for anyone to be precise, without knowing what size tyres you have.
Richardmid1
Regular
700 23c, does that sound right? I have been riding on 90-100, tonight I'm trying 105 front 110 rear.
black'n'yellow
Guest
unless you were having any particular issues running at 90-100, I would be inclined to leave them at that pressure...
billy1561
BB wrecker
- Location
- North west England
I have run mine at max as i'm a heavy rider. Not sure if that is right but the least rolling resistance the better.
black'n'yellow
Guest
higher pressures do not necessarily equate to lower rolling resistance...
billy1561
BB wrecker
- Location
- North west England
Why not? Assuming i have good wheels and hubs, decent tyres etc...
black'n'yellow
Guest
because the harder a tyre is, the less deflection it will offer over an uneven surface. The tyre will 'bounce' over imperfections in the road, rather than absorb them.
billy1561
BB wrecker
- Location
- North west England
So a softer tyre with more rubber in contact would have less resistance and roll quicker than a harder tyre with less contact area? No wonder i flunked science
