What pressure are you running your 25's ?
Comments
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Which tyres are you using? i.e. a type which comes up small for it's nominal size and is quite shallow (maybe veloflex?) or the reverse such as Michelin Pro4 SC which are in reality 27mm+ even on narrow rims and have a pretty deep profile = lots of volume.I'm 85kg and I can't stand the harshness of the roads around here that I have to commute on so despite noticing a faster ride with 80/90PSI, I run 60/70PSI and I'm considering going to 55 for the front. I went to 80/90 for a ride last week and it totally killed the enjoyment as it was so uncomfortable.
They're the ones that came with the bike: Felt All Weather, 700 x 25c on Felt Road RSL3 rims.0 -
Hutchinson Intensive tubeless 25c on commuters - 110F&R, 100F&R if wet. Note that 110 is the max allowable pressure for these tyres.
I've got the Hutchinson Intensive tubetype in 25c. First time I went out I couldn't read the pressure gauge and put in 125lbs instead of 105lbs and it was the most uncomfortable morning's cycling ever. I would have let some air out if I'd thought about it. I now ride them at 100lbs. Will ride my Schwalbe tubeless up to 110 lbs on shorter rides.BASI Nordic Ski Instructor
Instagramme0 -
I'm 68kg and run GP4000s II at 95/100. Anything less feels squirmy, I like them to be nice and firm. It's still a comfortable ride coming from 23mm tubs @ 120 and 23mm clinchers at 110.0
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In my case I am 85Kgs and i went out on my 25s today at 120psi at the rear and 110 at the front. It felt so comfortable and they rolled so well that for the first time I averaged 17mph.
I would have to try them at 90/85 or 85/80 to see what the outcome will be. The norm for me has always been to inflate both front and rear to 100. My tyres are both Felt.0 -
Which tyres are you using? i.e. a type which comes up small for it's nominal size and is quite shallow (maybe veloflex?) or the reverse such as Michelin Pro4 SC which are in reality 27mm+ even on narrow rims and have a pretty deep profile = lots of volume.I'm 85kg and I can't stand the harshness of the roads around here that I have to commute on so despite noticing a faster ride with 80/90PSI, I run 60/70PSI and I'm considering going to 55 for the front. I went to 80/90 for a ride last week and it totally killed the enjoyment as it was so uncomfortable.
I have 25 michelin pro4 sc fitted to reputedly harsh campag zonda wheels. They measure 25.1 to25.3mm across. I am 67kg and I run them at 75 front/ 80 rear if my gauge is accurate and they are brilliant.0 -
I have the same tyres on Ksyrium Elites. They were right around 27mm when I fitted them and I think expanded a smidge to maybe 27.5 shortly thereafter.
Which tyres are you using? i.e. a type which comes up small for it's nominal size and is quite shallow (maybe veloflex?) or the reverse such as Michelin Pro4 SC which are in reality 27mm+ even on narrow rims and have a pretty deep profile = lots of volume.I'm 85kg and I can't stand the harshness of the roads around here that I have to commute on so despite noticing a faster ride with 80/90PSI, I run 60/70PSI and I'm considering going to 55 for the front. I went to 80/90 for a ride last week and it totally killed the enjoyment as it was so uncomfortable.
I have 25 michelin pro4 sc fitted to reputedly harsh campag zonda wheels. They measure 25.1 to25.3mm across. I am 67kg and I run them at 75 front/ 80 rear if my gauge is accurate and they are brilliant.
I agree they're nice tyres. Pretty robust but still fairly comfortable and seems to have decent rolling resistance.
Incidentally, I don't buy the "harsh wheel" stuff.
I'm pretty sure all wheels are radially very stiff. It's lateral stiffness that varies a lot and I don't think it has a whole lot to do with comfort.
Laterally stiff wheels do change the feel of the bike but I think their impact on vertical compliance is mostly psychological.0 -
74kg
90/110psi for fast group ride
85/100psi for solo
80/95 for wet
SES 3.4 Disc Clincher
front: Schwalbe One Tubeless 25
rear: Schwalbe One clincher 25 (couldn't convert the rear wheel... so...)2015 Trek Domane 4.5 Disc
http://chup.info/c/tag/trek/0 -
What's your thinking behind using different pressures for solo and group rides?74kg
90/110psi for fast group ride
85/100psi for solo
80/95 for wet
SES 3.4 Disc Clincher
front: Schwalbe One Tubeless 25
rear: Schwalbe One clincher 25 (couldn't convert the rear wheel... so...)0 -
the group rides are usually fast... just want that little less rolling resistance by sacrificing comfort... (more of a mental thing
What's your thinking behind using different pressures for solo and group rides?74kg
90/110psi for fast group ride
85/100psi for solo
80/95 for wet
SES 3.4 Disc Clincher
front: Schwalbe One Tubeless 25
rear: Schwalbe One clincher 25 (couldn't convert the rear wheel... so...)
2015 Trek Domane 4.5 Disc
http://chup.info/c/tag/trek/0 -
110psi
Then I don't look at them in-between races, so likely much much lower
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77Kg
Conti 4000SII on HED Belgium+ rims
Run 80PSI on the rear and a bit less on the front0
