Tyre Pressures

[greenlaner1]

hi again,

what pressures should i be running, i got 10-15psi at the moment, thanks

GL1

[t-shock 250]

No more than 4 PSI rear, about 6 or 7 PSI front.

[jimmyl]

With Michelin's 4 psi back and 5.5psi front unless you are very light or riding very muddy sections with no rocks. Check a few times especially if the weather is cold and sunny. A back tire can go up a pound after being first checked on a spring morning.

A good low pressure tire guage is money well spent.

[scorpa3]

Good advice.

[mrgas]

thanks for asking greenlaner1

tyre pressures was gonna be my next question

[greenlaner1]

wow, as low as that??

With Michelin's 4 psi back and 5.5psi front unless you are very light or riding very muddy sections with no rocks

i would have though that the lighter a person is the higher the pressure must be? thats why i was running about 10psi, i weigh in at 15stone

cheers again

GL1

[kinell]

i would have though that the lighter a person is the higher the pressure must be? thats why i was running about 10psi, i weigh in at 15stone

Yer a fat git like me, run the rear at anything between 3 and 5 psi depending on the gloop to rock ratio

[jse]

Yer a fat git like me, run the rear at anything between 3 and 5 psi depending on the gloop to rock ratio

Yea, me too. I weigh about the same (hmmmm, 1 stone equals 14 pounds?) and I usually run 4 rear, 6 front under most circumstances. I may run 5 rear if there are sharp-edged rocks and 3 if it's sloppy wet but no nasty sharp thingies.

You'll want to get a good tire gauge, you will use it a LOT in Trials and try to get one that has a low range (like a 1-15 psi range here in the States) because most gauges have a percentage of calibration inaccuracy, generally about 2-3% which, for instance would be 2-3 psi for a 1-100 psi gauge (not good for Trials) but that would only be about .30-.45 psi for a 1-15 psi gauge.

Jon

[chewy]

As an old git in a digital world i never measure my tyre pressures with a guage I just sit on the bike and adjust visually a new Michelin on a cold day would be chalk to cheese of a used (especially down the road and get some heat through them) IRC for example. Of course you must also conder where and what you are riding... Horses for courses!

[jse]

You'll want to get a good tire gauge, you will use it a LOT in Trials and try to get one that has a low range (like a 1-15 psi range here in the States) because most gauges have a percentage of calibration inaccuracy, generally about 2-3% which, for instance would be 2-3 psi for a 1-100 psi gauge (not good for Trials) but that would only be about .30-.45 psi for a 1-15 psi gauge.

Jon

As an addition to that, the best gauges I found were from a company that sells supplies to serious dragracers. Tire pressures are important business in dragracing, where a pound of pressure can make a difference. I bought a Longacre 0-30 large dial gauge years back and at the time the price made me gulp a little, but it's been bulletproof, extremely rugged and I've had it calibrated several times and it's been spot-on every time. So, in the long run it was a bargain.

Jon

[greenlaner1]

nice one guys, will be getting me a tyre guage

hopefully will have my first proper ride on it tomorrow, if it isnt raining (fingers crossed)

GL1