ok ive sused that chart out and for my weight which is 120 pounds just under im looking at 73-80 psi.... so thats wot ive gone for now... 
80psi...c how i go.... 
Bike Forum
any roadies on here with tyre pressure advice please.
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Posted 6 months ago #
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If you've only ever run underinflated tyres make sure you keep the tip of your tongue touching the roof of your mouth to avoid biting it off once your tyres are properly inflated
Posted 6 months ago # -
My old team leader was just phenomenal downhill (on the road), taking so much time out of the rest of us in the twisty stuff. One of his top tips was never to run tyres (23c) at above 100psi in a road race, less in the wet. Quite a bit higher in flat straight TTs would be expected.
At your modest weight and with you using slightly wider rubber I'd have thought 80psi would be bob on.
Posted 6 months ago # -
[quote]At your modest weight and with you using slightly wider rubber I'd have thought 80psi would be bob on.
okey dokey ive gone for 80 psi will stick to that see how i go...
one more thing.. some of you talking are using 23c tyres.....is that the norm ? im just using what came with the bike.... its only 44' frame so im guessing ive bigger wheels to compensate... yep im riding a 'Specialized Dolce'...nice bike for the price realy... it even has Zerts inserts.... BTW .... brakes pads are good too = they dont wear down as quick as the MTB (+1) Posted 6 months ago # -
+1 80psi sounds about right for you though I'd give it a go at 100psi to see.
I guess the thing is that it's quite normal for the road to feel quite bumpy - certainly much more so that on an mtb on the road.
Road bikes with tyres at the right pressure whizz along (sometimes!) - at too low pressure, they lose that lovely feeling.
Posted 6 months ago # -
I'm between 8 and 8.5 stone too elaine, and have 23c tyres on my road bike. I pretty much always have 100 psi in my tyres. I notice the difference if i can't be bothered pumping them up and it drops down to 80 or below - the bike feels much slower. When on the cx bike with cx tyres i use about 80psi - your bike must feel really slow/draggy with 60 in the tyres!
Posted 6 months ago # -
11 stone, 23c and 100-115 psi depending on weather. If you pump them up too hard you will feel the back end bounce around over road imperfections. 150 psi for the track (unless its sunny!
)
Posted 6 months ago # -
When people talk of softer tyres feeling much slower it is very relative. The difference for me from 90 to 120 psi over a 10 mile time trial is about 15 seconds but its a damn sight more uncomfortable and I wouldn't want to corner fast in the wet with them that hard. Just because your teeth are chattering on hard tyres dosen't mean you are really travelling much faster.
Posted 6 months ago # -
100 psi is fone on a road bike unless
A. You are in the Tour de France or
B. You're a Fat B!!!!!!!!
Posted 6 months ago # -
i'm about 65kg and i've been running 135psi in my 23c ultremos since i got them, can't really tell any difference in comfort until i tried the "max" of 145psi and it was very harsh.
i've ran them in the wet like this too and they were as consistant in terms of grip as in the dry
Posted 6 months ago # -
pinches, if you are prepared to push it a little around the corners, experiment at your current pressure then try dropping 40psi plus and if you can't tell the difference you are not pushing hard enough!
Posted 6 months ago # -
http://www.bikequarterly.com/images/TireDrop.pdf
this should help.
Posted 6 months ago # -
RealMan - Member
Eh? 8.5 stone rider squirming tyres at 60psi?
Yes.. 60psi on a road bike feels horrible.You are 8.5 stone too?
Oh, hang on, you are 12 and probably are... 
Steve-Austin - Member
112.5 rear
107.5 frontI might go down 6% if the roads are wet
*glee*
Posted 6 months ago # -
Why would you pump up your tyres then wait a few days before trying them ?
try them straight away, I'm assuming you live near a road.Posted 6 months ago # -
i weigh 77kg, i've got 25mm tyres on my road bike.
the rear gets 85ish psi, the front gets 75ish psi.
yes, i could go higher, but my teeth fell out the last time i tried it - sheffield roads are terrible.
Posted 6 months ago # -
Loving the people saying what's right and wrong. Was that a chart telling us what the pressure should be? Crazy!
To those people who aren't sure, most of us who don't refer to a chart experiment until we find what suits us best. I'd recommend taking a smilar approach. Try your tyres soft and hard, you'll notice differences with both, some of which will suit you and some which won't.
HTH.
Posted 6 months ago # -
13 stone and run about 110psi front and back.
Posted 6 months ago # -
ahwiles - Member
i weigh 77kg, i've got 25mm tyres on my road bike.the rear gets 85ish psi, the front gets 75ish psi.
yes, i could go higher, but my teeth fell out the last time i tried it - sheffield roads are terrible.
More or less this. I may lose 0.00043% top speed but I can still keep up on the chain gangs - proper fast chain gangs with 1st cats on them
Posted 6 months ago # -
lol what are you saying mr cynic ( how dare you roll your eyes at me hahahhhHha..... yes im 8.5 stone....not bad weight for my age... i guess i could be a tad lighter but then i wud be a stick insect and i dont want that...lol
going to keep with 80 psi... does this mean i will go faster ...yipeeeee.... yeah its all about experimenting.... i do that with the MTB..... only roady bikes its all a new ball game...
good to get feedback.... Posted 6 months ago # -
Usually go on 100 - 110 psi for speedy road riding and commuting/winter slow riding 90-100 - 71 Kg here
Posted 6 months ago # -
Elaine-anne, thats 2 posts now where you have opened up brackets but not closed them. Its this button .... )
Posted 6 months ago # -
its worth noting that the gauges on pumps are pretty pish when it comes to accuracy. I'd not be surprised (based on experiance) to see 10-15% off.. good for checking its the same 'as how you had it', but not great for forums
(15psi on the mtb, 85 on the road bike. 13 stone)
Posted 6 months ago # -
"8.5 stone"-flame-gate was directed at "Real"man.
Posted 6 months ago # -
At 8.5 stone running 100 psi will feel like running solid wooden tyres!
Unless you're racing try around 70 to 80 psi and have a comfy ride.
Usual macho crap in abundance advice so far. :-
Edit: If your running 60 psi with no ill effects don't worry.^sanest post in this thread.
10 and a bit stone, 23c's 95 rear/85 front drop them 5psi for the pavé
a high tpi and the right pressure for the carcass means good grip (and less rolling resistance) overinflating does nothing to improve speed or comfort.so much crap written about tyres
best read this to dispel all the myths
http://www.sheldonbrown.com/tires.htmlPosted 6 months ago # -
5lab..... no way you put 15 psi in your MTB....get a grip lad...
Posted 6 months ago # -
I use about 115psi for road riding but my TT tyres ger run at 150psi
Posted 6 months ago # -
I'm about 12.5 stone, 23mm tyres and I usually have about 100 in the front and 110 in the rear. I'll maybe let a bit out if it might be a bit slippery.
If they're much lower it does feel slower but I wonder how much of this is in the mind. On the Dartmoor Classic this year I noticed the front had gone down to 70 at the second feed stop, I got it back up to 110 but the knowledge that it was going down relatively quickly made it seem quite draggy for the last leg.
Posted 6 months ago # -
15psi
I assume there's no riding just tyres rolling off rims/snakebites etc?
Posted 6 months ago # -
I'm 12 stone and run my 23c at 115psi (or thereabouts). With modern frame design, materials and manufacture, there's no reason a bike should be uncomfortable at those sorts of pressures. I reckon the whingers are either riding crappy old iron or are just too soft.
Posted 6 months ago # -
weight in kg=0.atmospheres.or weight divided by ten=atm.
drop half an atm in the front.
go down 1-2 atm. when it rains.my first bike mechanic told me that.
feeling fast usually means its too high.Posted 6 months ago # -
12 stone here, put 100psi front & rear on the road bike, and 25/30 psi F/R on the MTB.
Posted 6 months ago # -
1 stone - 6.35 kg
1 atm - 14.69 psigone as low as 50psi,as high as 200psi..95/105 feels about right for 69-70kg.
Posted 6 months ago # -
gone as low as 50psi,as high as 200psi..95/105 feels about right for 69-70kg
200psi!?!? Do you have any fillings left? Not to mention sperm count...gulp
Posted 6 months ago # -
eh lol @ 200 psi ahhahah
giant tyres then about to explode ? Posted 6 months ago # -
I think the rims would break at the sidewall before the tyres exploded..cartoon style.
I don't reccomend it.that's all I've got to say about it..Posted 6 months ago #
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