Author |
Message |
Lemonchili_x1
| Posted on Tuesday, July 20, 2004 - 09:13 pm: |
|
I know it's summer up north, but it's getting colder here... I've been discussing tyre pressures with a friend - during winter he runs lower pressures to try and get more heat into the tyres. I've been playing around with the idea, but not sure if I'm making it better or worse. What do you do when it's really cold, or really hot? Up, down or leave them alone? (btw I'm talking about road riding, not track) Thanks in advance, lemonchili
|
M1combat
| Posted on Wednesday, July 21, 2004 - 12:47 am: |
|
In F1 they tend to lower the tire temps when the track is cold. It's more the pavement temp that you need to adjust for as I recall. I don't race IRL but I do a LOT of virtual racing with the finest simulators made. |
Lemonchili_x1
| Posted on Wednesday, July 21, 2004 - 03:40 am: |
|
Don't get me wrong, I'm no Valentino... so I'll rephrase my question: Who uses the tyre pressures in the handbook? Who uses something different? btw: Did anyone see the last lap of the German MotoGP? That was great racing! |
Easyflier
| Posted on Wednesday, July 21, 2004 - 07:55 am: |
|
During the normal riding season I use the suggested pressures in the manual. Riding in temps under about 45°F I like to run 6-8 pounds less for short trips around town. Don't know if it makes any real difference but I feel like I'm getting better grip on cold pavement that way. |
Bomber
| Posted on Wednesday, July 21, 2004 - 09:04 am: |
|
I use the book pressures -- I checkled them against my long-term rule of thumb, and they wporked -- rule of thumb = pressure cold yields a 3 to 4 psi raise in pressure hot . . . . . oh, Y2K MaDeuece, me, 220 or so geared up (which would make a difference) |
Midknyte
| Posted on Wednesday, July 21, 2004 - 10:58 am: |
|
I used the book pressures on a 50 degree day and landed on my azz. I run them 4 lbs under now, even in warmer weather. |
Lemonchili_x1
| Posted on Wednesday, July 21, 2004 - 08:34 pm: |
|
Hmmm... Thanks for all your thoughts. I've been running as low as 8lbs under, but I think I'll put them a lot closer to the book, and just ride it for a while and get used to it... |
Firemanjim
| Posted on Thursday, July 22, 2004 - 12:20 am: |
|
Hey,Graham.What's a tyre???HaHa. Changed sprocket yet? |
M1combat
| Posted on Thursday, July 22, 2004 - 12:52 am: |
|
I've noticed that when my front gets a little lower than I want it to be it will start following lines in the road. Especially when leaned over. I've tested it out many times just to make sure so I keep my tire above that threshold by about a pound. The rear I keep 1.5 to 2 above that. |
Midknyte
| Posted on Thursday, July 22, 2004 - 01:42 am: |
|
Just a note on running under pressured - if your [XB] picks up a wobble in the front, your pressure is too low. |
M1combat
| Posted on Thursday, July 22, 2004 - 02:03 am: |
|
I would agree with that, but if it persists as you raise the pressure, maybe check for cupping of the front tire? They seem to be pretty sensitive to that too. |
|