70 psi!

velo.2010

Yes 70 psi on the rear. Crazy. Got a new track pump Friday and it gave me a reading of about 70psi. Before I would get a lend of a track pump from a chap before I decided to upgrade the bike. Just hand pumped for the last two months thinking I had enough pressure and it would help with fitness.

Stupid I know. Anyway no more slack feeling on draggy climbs and no more checking to see if I have a slow puncture.

parko202

check the tyre rating on the sidewall, you would be able to throw it up to 110 if its a road bike wheel. Really do notice the difference at the correct pressure and you're much less susceptible to punctures!

blorg

I would tend to run 110 on the back, 100 on the front. Bear in mind with road wheels you need to re-inflate them regularly, the higher the pressure the quicker it seeps out. At a minimum re-inflate once a week, many check before each ride.

velo.2010

Thanks lads. Always knew what to do but just got a bit lazy running wheels at lower pressure when the lend of track pump disappeared.

niceonetom

I'm knocking pressures down to 90/100psi these days for slightly better grip. Fucking leaf paste stuff all over the place. Me no likey.

velo.2010

@Niceonetom why not consider switching to a more grippy/comfortable 25mm during winter and keep your pressures up!

blorg

Technically you would not be keeping the pressure up as you need to use lower pressure in wider tyres- I run 90/100 on 700x25c tyres myself, have them on my tourer and commuter... Considering getting a pair for the road bike for winter too mind.

niceonetom

Yeah been thinking about that, but I'm not convinced of the real grip diff between 23s and 25s and I don't think anything bigger would fit. Must google planet-x tyre clearances and see what people have squeezed on.

I'd put 28s or bigger on my fixie if I could, but it has really tight clearances.

I need at least 2 more bikes apparently.

blorg

FWIW I think the difference between 23 and 25 is noticeable.

niceonetom

blorg wrote: »

FWIW I think the difference between 23 and 25 is noticeable.

In terms of grip or comfort? It's grip I'm more concerned about these days.

I'll probably put 25s on the fixie next time around either way. Rubino pros are only available in black at 25 though, which saddens my inner hipster.

Lumen

niceonetom wrote: »

In terms of grip or comfort? It's grip I'm more concerned about these days.

You seem to have scared yourself.

I commuted on a front Michelin Pro Grip 3 for a few weeks whilst I was waiting for a delayed 4000s shipment, and it held together perfectly, no cuts or anything. It is a rain race tyre, and should therefore be supremely grippy.

Feel free to pop round and borrow it for a while/run it until it explodes.

Seems safer to run a grippier tyre on the front.

Nietzschean

must say i noticed a big difference in grip cornering going down from 25 to 23, esp in the wet...

tomasrojo

I have no sense of style, but I do wonder whether it's Euro to use psi. Would bar or Pa not be more appropriate?

rflynnr

At the risk of stating the bleeding obvious, a 23 will tend to have a noticeably shorter lifespan than a 25 (in case that's a consideration). At least, this is my experience.

penexpers

At the moment, I am using 28mm @ 75psi on the rear and I find it a bit harsh (running 2.35" tires at 30-35psi has me spoiled). I just ordered some Marathon 40mm tires, which can run at 50psi. It'll be interesting to see if my rolling resistance increases.