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Tyre pressures??
I've just bought a new bike and have been out a few times on it, it's ace so far.
I'm around 70kg and ride a 25c tyre, what pressures should I be running front and rear,
I am going out today to buy a gauge track pump as my current pump has no gauge.
If you're new please join in and if you have questions pop them below and the forum regulars will answer as best we can.
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44 comments
I've just lashed out all of £5.99 for an Aldi track pump. To be honest I doubt whether there is anything out there that comes close to this item for value. It is a super pump with gauge and it is very solidly built considering the price. Check one out you will be amazed.
Will do, cheers for that.
Hope it lasts longer than the ones they've had before..
Yes! This latest version is a completely different beast comparerd to Aldi 's previous pumps. It has a metal barrel and foot plate and the pump action is as smooth as silk ! You really need to check this out seriously !
If I didn't have a decent one already, i'd be interested in at least seeing what it was like. However I do, and the one thing that drives me mad with most pumps is the valve head - nothing comes close to the Birzman snap-it head IMO - so that's where my money will probably be going next time. Twenty-odd quid would be a bloody good deal for the ease and precision every time I pump up tyres but my Blackburn works so well apart from that wee irritation it seems a bit silly to go there now. Good luck with it, be curious to hear how it goes as a recommendation for others.
Surely the optimum pressure of any tyre is somewhere between those that the manufacturers state on the side wall. The heavier you are the more pressure is required up to the maximum figure. Usually the manufacturers regard around 80kg as being heavy so anyone around or above this should have tyres pumped up to maximum. Below minimum even for light riders will increase risk of snake bites.
Well the obvious question is optimum for what under what conditions. I've yet to find a tyre whose quote minimum figures were not very heavily on the high side for my weight (~74kg) and the type of riding I do in the UK, YMMV clearly. I can't imagine ever going even remotely as high as the maximum for anywhere outside of a track in this country.
The Max is also a bit conservative as it really depends on the rim, as that is an unknown to the manufacturer they tend to go low. And I think the minimum is more concerned with rolling off (Again, the rim has an influence.) rather than pinch flats.
Start with 80 front and 90 rear.
When you've ridden those pressures for a while experiment by reducing / increasing them by at least 10 psi and see how it rides.
This sounds like pretty good advice to me.
I'm 75 and normally run about 90-95 front / 95-100 rear, Vittoria Corsa Elites. Depends on the road quality I am expecting - if its good, I will add a bit more.
FWIW - 75kg and 25mm tyres (Vittoria Open Pave) on 23mm (17mm internal) rims - usually about 80psi (front) / 85psi (rear).
I'm a similar weight and run 25c tyres at 70 front and 90 rear.
http://www.bikequarterly.com/images/TireDrop.pdf
This is a good place to start. Note that the load is per wheel not total
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