An interesting take on tyre pressures

[HenryDorsetCase]

Yep. But also, be sure that the gauge you do use returns the same reading every time. Not all do, especially those cheap little pop-up pencil types.

I have two of these: I had to buy the second one (with the flexi hose) when I couldnt get the straight one (at the top) to work easily on bikes with 17 inch front wheels and twin discs.

http://www.ghmeiser.com/dial.htm

they're called "Accu-gage" so they must be accurate, right?

I havent checked one against the other, must do that.


http://www.ghmeiser.com/dial.htm

160XGA and a H60X

[White trash]

19 cold in the rear, 28 in the front. Works fricken awesome. You can easily get 40 laps with those pressures before the grip level drops.

[slofox]

I use a digital gauge - it seems to be fairly consistent within itself.

[slofox]

...any general "recommend" tyre pressure will be a compromise between several factors.
.

Which is exactly what I meant in the OP when I said:

"My own thoughts are that it must be nigh on impossible to cover the wide range of loadings any given bike may have and come up with a "correct" pressure..."

[Mishy]

Where do you find these recommendations please Mishy? I have looked all over and found none so far...

I have all the tech guff, but I think that you can find the info you want at
conti-online.

[Mishy]

19 cold in the rear, 28 in the front. Works fricken awesome. You can easily get 40 laps with those pressures before the grip level drops.

You did 40 laps without skidding on your bum ?

[slofox]

I have all the tech guff, but I think that you can find the info you want at
conti-online.

OK. Thanks. But I'm using Bridgestones...

[White trash]

You did 40 laps without skidding on your bum ?

Not consecutively

[Mishy]

Not consecutively

Ha ha ! well put

[aprilia_RS250]

32psi on my M3s. Excellent tyres. they're sticky like a blind lesbian at a fish mongers. Still have the curve like they did when I bought them.

[ellipsis]

....I run a fairly soft compound tyre on the front and a couple of pounds less than most people think is right for the front end...back end I try and keep as close to manufacturers recommendations as possible...mainly because the back end doesn't worry me a lot.....I have been getting stick from a mate who rides a similar bike, about my under pressure front end and my like of the front brakes as they are ...a little to soft for his liking...not mine.....anyway he's the one laid up for a while with pins in his leg....front end gave out under a bit of braking and loss of traction to a hard front end....downside for me is less miles from the front tyre...but I like it that way ...and I (touch wood) usually get home...

[slofox]

After trawling through all these most interesting posts, I decided to fart around with the pressures a little...

Raised rear from 35 to 38
Raised front from 32 to 34


Impressions? More regular turn in - easier transition from one side to t'other. Grip at least as good as usual - not that I test the boundaries you unnerstand...So I feel reasonably happy that with my own gauge, I need to go up a couple of psi both front and back. I'll sneak 'em up a couple more soon and see what happens.

EDIT: I'd hafta say that the first ride on higher pressures was pretty damn good too... But then, that could be because I was too tired to care what happened...

[Crasherfromwayback]

I'm a low pressure sort of guy...maybe riding around on trials bikes with 3 or 4 psi has distorted my thinking....low pressures to me mean traction,and I'm all for traction..

I'm with you on this. It's the one time soft is good!

[Motu]

, I decided to fart around with the pressures a little...

Are you going to lower pressures by a similar amount to see both sides of the issue?

[slofox]

Are you going to lower pressures by a similar amount to see both sides of the issue?

yes.......