Tyre pressures?

[Prof - R]

just like to know how does one know what tyre pressure to use taking all factors such as weather , track , rider wieght , type of tyre if that does matter & rider style

[Tony.OK]

Too many variables to answer proberly dude..................
Different brands all run different pressures, same as wet weather requires diff pressure.
Whatever brand you are using, best thing is to ask the importer for basic specs.

Eg......I run 30psi cold fromt and rear, depending on track and temp I'll change a couple of psi. For wets it'd be 34psi.

Other brands are nothing like the pressures I run.

So to answer your question...................I'll ask you how long is a piece of string

[Prof - R]

yes thanks for that knew it be hard one to answer but was just hoping to get guideline to what should be in range of

[Teambwr47]

Dunlop D211GP's 120/70 front 190/55 Ntec rear

30 psi front measured cold.....

21 psi rear measured hot off the tyre warmers.....

[Prof - R]

i do use tyre warmers .... and currently running dunlops

28 psi cold front

25 psi cold rear

[Shaun P]

It really depends on what yre running and in what conditions but a good rule of thumb is when you come in off from a track session you should be getting around a 5 psi rise - if higher you can add more pressure so the tyre carcass doesnt flex as much, causing the higher rise - if lower vica versa

Pirellis can be around 30f 28r cold
Dunlop ntecs as above
Other dunlop much the same as pirelli

[johan]

just like to know how does one know what tyre pressure to use taking all factors such as weather , track , rider wieght , type of tyre if that does matter & rider style

It's a question I've been trying to find ananswer to for a year now. I have made little progress.

The latest theory I'm researching is measureing tyre temperature coming off the track.

[Shaun]

It's a question I've been trying to find ananswer to for a year now. I have made little progress.

The latest theory I'm researching is measureing tyre temperature coming off the track.

Your latest Theory, is the best way to control your tyres on a race track BUT, your temp reading of the tyre, is very rellivent to way your suspension is set up.

The OLD way of 4-5 psi Groth in pressure, is just that, THE OLD way, and a lot of bollocks these days.

All Brands of tyres, have there own reccomended PSI to run, always check with your supplier, if changing brands.

[Robert Taylor]

It's a question I've been trying to find ananswer to for a year now. I have made little progress.

The latest theory I'm researching is measureing tyre temperature coming off the track.

Johan please contact me via regular e-mail, I have some relevant data.

[Shaun]

Johan please contact me via regular e-mail, I have some relevant data.

A Novel coming your way Johan

[Shaun P]

Your latest Theory, is the best way to control your tyres on a race track BUT, your temp reading of the tyre, is very rellivent to way your suspension is set up.

The OLD way of 4-5 psi Groth in pressure, is just that, THE OLD way, and a lot of bollocks these days.

All Brands of tyres, have there own reccomended PSI to run, always check with your supplier, if changing brands.

Yer tyre pressure doesnt increase any more with heat that is so '90's..
Everyone should have a infrared thermometer, weather station at club days and of course their own tyre technician. but if someone in europe tells you to run 27.5 psi then you shouldnt deviate from that or the tyre might just fall off the rim.

[wharfy]

Yer tyre pressure doesnt increase any more with heat that is so '90's..
Everyone should have a infrared thermometer, weather station at club days and of course their own tyre technician. but if someone in europe tells you to run 27.5 psi then you shouldnt deviate from that or the tyre might just fall off the rim.

If you get Shaun to supply your tyres you DO get a tyre technician (but you have to share him )

[Prof - R]

thanks for all your guys information