Home

Go Back   .: XT660.com - The #1 XT660 Resource :. > XT660X & XT660R > XT660X/R Tech Section > XT660X Tyres
FAQ Calendar Search Today's Posts Mark Forums Read Main site

Google

Reply
 
Thread Tools Display Modes
  # 1  
Old 06-07-08, 14:44
CaptMoto's Avatar
CaptMoto CaptMoto is offline
The Guv'nor
 
Join Date: May 2006
Location: London
Posts: 4,007
CaptMoto is on a distinguished road
Watch your tyre pressure

As you know I have been out of action from the 8th of May due to my thumb accident and only finally managed to start riding again from last week.

The first thing I have noticed was that the bike felt gummy and not as responsive as I am used to, particularly in the corners. I thought the tyre pressure felt a bit low so I went to the petrol station to check/inflate the tyres and to my surprise the front tyre had about 10psi left and the back one 14.5psi. I got them both up to 33 and now the bike feels proper again.

Amazing what 2 months of inactivity can do to your tyres.

Have you checked your pressure lately?
  # 2  
Old 06-07-08, 16:42
maxwell123455 maxwell123455 is offline
XT-Moto SuperStar
 
Join Date: Jul 2007
Location: Edinburgh, Scotland
Posts: 1,943
maxwell123455 is on a distinguished road
Yep but i would never trust those industry/petrol station pump readouts as ive pumped my tyres up before, came home and checked the pressure with a proper air pump at home (like those wee red ones only its yellow and about 3 times the size) to find that it had over inflated them by around 5psi on each tyre.

Also the reason your tyres loose pressure is that rubber doesnt hold air in, it over time allows air to push out through tiny mirco holes and there for reduces the pressure with in your tyre. The thicker the rubber the slower the process. Therefore tubed tyres will go flater quicker (9 times out of 10) over non tubed.
__________________
Plough on
  # 3  
Old 06-07-08, 17:22
Tony660x's Avatar
Tony660x Tony660x is offline
XT-Moto SuperStar
 
Join Date: Oct 2006
Location: Staffordshire, UK
Posts: 569
Tony660x is on a distinguished road
Should'nt you also check tyre pressures when cold i.e. you have not ridden the bike as when you do the tyre pressures can slightly increase due to heat?

I check mine every few weeks or when I can be bothered. When the last time I checked them was just before they were fitted to the bike again after a full set of tyres were fitted, the tyre fitters pumped them up to 35 psi because I was not around to tell them what I wanted. I got home and adjusted them to 31 front and 33 rear. Scrubbed then in and had some significant head wobble when pushing the bike, I dropped the front to 30 and it transformed the handling, its perfect. I dropped the rear to 30 as I like the soft feeling it gives so for me with Avons on 30/30 is perfect for my setup and body weight.
__________________
  # 4  
Old 06-07-08, 17:25
driesie driesie is offline
Guest
 
Join Date: Dec 2007
Location: London
Posts: 79
driesie is on a distinguished road
I find the best way to get accurate tyre pressure is to pump them up with one of those big bicycle pump to when the gauge is at about 34-35, then I attach a proper pressure gauge and let out until accurate (I run 34 at back and 32 in front).
I find also that the gauge on the pumps are completely useless.
I check mine weekly and usually need to adjust slightly every other week.

Also, mind you that the pressure will change according to the temperature.
Sponsored Links
  # 5  
Old 06-07-08, 17:35
motonacio's Avatar
motonacio motonacio is offline
XT-Moto SuperStar
 
Join Date: Jan 2007
Location: Here and There
Posts: 389
motonacio is on a distinguished road
Quote:
Originally Posted by CaptMoto View Post
As you know I have been out of action from the 8th of May due to my thumb accident and only finally managed to start riding again from last week.

The first thing I have noticed was that the bike felt gummy and not as responsive as I am used to, particularly in the corners. I thought the tyre pressure felt a bit low so I went to the petrol station to check/inflate the tyres and to my surprise the front tyre had about 10psi left and the back one 14.5psi. I got them both up to 33 and now the bike feels proper again.

Amazing what 2 months of inactivity can do to your tyres.

Have you checked your pressure lately?
Shame on you - I keep a stick type pressure gauge in my tool roll and check the pressures approx every 300 miles/weekly.
__________________
My Mods | TLC | A good spannering | Kev's brilliant Mods & advice via XTSupporters - Best �10 ever spent.Lucid Puppy && SeaMonkey - Wubi - - Boinc - electric sheep

"Strive to be the person your dog thinks you are"


  # 6  
Old 06-07-08, 17:40
Bear Bear is offline
XT-Moto SuperStar
 
Join Date: Nov 2007
Location: Peterborough
Posts: 285
Bear is on a distinguished road
Tony is right about cold tyre checks.
I have a smallish compressor with a tyre inflator in my shed plus I have a digital gauge that I use to keep a propper eye on them, plus I go for the mark 1 check EVERY TIME I get the bike out for first ride of the day!
  # 7  
Old 06-07-08, 19:25
Denny Denny is offline
XT-Moto SuperStar
 
Join Date: Nov 2006
Location: Istanbul
Posts: 564
Denny is on a distinguished road
YES YES YES!!!

Checked pressure front & back before I left last week & all was good. We hit some lovely windy roads 3 days ago only the bike was all wallowy. Went to the nearest tyre place to find out that the front was 21 and rear 18! Wa Wa Wee Wee!!!! Was rippin those corners like nobodys business
__________________
  # 8  
Old 07-07-08, 14:53
H00v3rman H00v3rman is offline
Guest
 
Join Date: May 2008
Location: Cambs
Posts: 33
H00v3rman is on a distinguished road
I check mine every 3 days (with my own pressure gauge), I also knock on the tyres and make sure they sound right every day.

I also run my hand round each tyre/ visually inspect them every evening when I get home to see if anything has got stuck in them.

A bit over the top you might say but it has enabled me to find bits of flint , drawing pins, staples, thorns etc before they get worked right in and cause a puncture on a number of occasions.

Last edited by H00v3rman; 07-07-08 at 14:56. Reason: Fish gotta swim, birds gotta fly.
  # 9  
Old 07-07-08, 14:58
CaptMoto's Avatar
CaptMoto CaptMoto is offline
The Guv'nor
 
Join Date: May 2006
Location: London
Posts: 4,007
CaptMoto is on a distinguished road
that is the way to do it H00v3rman, although we not always have the time to do it, you are right on target there!

Well done.
  # 10  
Old 31-07-08, 10:52
streeter's Avatar
streeter streeter is offline
SemiPro XT-Moto
 
Join Date: Sep 2007
Location: Bristol
Posts: 38
streeter is on a distinguished road
tyre pressure

Should have read this before, My X has been creeping out in the corners a little lately and it was only yesterday i noticed the tyre was not looking that good, rather than wearing flat my rear seemed to be concaved slightly, then i pushed it with my finger and it was very soft, took a slow ride to the garage and it was at 8 psi, pumped it up to 30 and rode home nice and steady, this morning it was flat as a pancake. So not only have i lost a days pay, but have to find a rear distanzia form my bike at a reasonable price, as this one is worn out now. At the moment the best i have is �130 fitted for the rear, not a happy biker at the moment.

If i cant get a distanzia, whats a good back tyre that will be ok with the distanzia on the front.

Jason
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT +1. The time now is 00:39.
Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2019, vBulletin Solutions Inc.

  XT660         Archive   Main site


Footer
vBSkinworks Top