Go Back  Bike Forums > Bike Forums > Commuting
Reload this Page >

Vittoria Randonneurs psi

Notices
Commuting Bicycle commuting is easier than you think, before you know it, you'll be hooked. Learn the tips, hints, equipment, safety requirements for safely riding your bike to work.

Vittoria Randonneurs psi

Old 11-04-10, 10:24 AM
  #1  
Senior Member
Thread Starter
 
MrCjolsen's Avatar
 
Join Date: Nov 2004
Location: Davis CA
Posts: 3,959

Bikes: Surly Cross-Check, '85 Giant road bike (unrecogizable fixed-gear conversion

Likes: 0
Liked 4 Times in 3 Posts
Vittoria Randonneurs psi

Says 85 on a 28mm tire.

Sheldon brown says I should run 120 on my rear tire, based on weight.

Who wins?
MrCjolsen is offline  
Old 11-04-10, 10:32 AM
  #2  
hi
 
YoKev's Avatar
 
Join Date: Apr 2006
Location: Kingston, NY
Posts: 2,605
Likes: 0
Liked 3 Times in 3 Posts
I would follow the tire casing pressure, and adjust from there as needed.
YoKev is offline  
Old 11-04-10, 10:37 AM
  #3  
Senior Member
 
EKW in DC's Avatar
 
Join Date: Apr 2009
Location: Alexandria, VA
Posts: 2,053

Bikes: Trek 830 Mountain Track Drop bar conversion

Likes: 0
Liked 0 Times in 0 Posts
I just started running 32mm Vittoria Randonneurs in the last month or so. I have a similar situation. For the most part, in my case, Sheldon won. That is, I pump mi tires up closer to where the weight/tire size charts would indicate they should be even though it's quite a bit higher than suggested as maximum. Mine say 75 psi I think, and I pump them back up to around 100 psi when I top off my tires once or twice a week. Could still go higher to get to the suggested ideal pressure, but they roll real nice and seem to have about the right amount of bulge at 100 psi.

All I have read suggests that the tires are generally capable of holding much more pressure than the sidewalls would suggest and that those numbers are based on lighter riders and CYA lawyers wishing to avoid getting sued for damage to overinflated tires.

In your case, as in mine, I'd vote to go part of the way to Sheldon's recommendation for pressure. Then, adjust as needed.
EKW in DC is offline  
Old 11-04-10, 11:01 AM
  #4  
Senior Member
 
alan s's Avatar
 
Join Date: Oct 2007
Location: Washington, DC
Posts: 6,977
Liked 191 Times in 130 Posts
Notwithstanding Sheldon Brown's advice, I would not inflate above the max pressure rating. While it may be safe to overinflate a particular tire, how would you know for sure? You risk catastrophic tire failure (i.e., blowout), rather than a simple flat tire, and such failure could result in loss of control of the bike, particularly if the front tire goes. You have to ask yourself what is to be gained by overinflation and what is the risk? Max pressure results in a rock hard tire as it is, so why overinflate?
alan s is offline  
Old 11-04-10, 11:07 AM
  #5  
Old. Slow. Happy.
 
MileHighMark's Avatar
 
Join Date: Jan 2010
Location: Boulder County, CO
Posts: 1,797
Likes: 0
Liked 1 Time in 1 Post
I have 700x35c Randonneur Hypers on my commuter. I weigh 190-ish, and carry 10-15 pounds of stuff in front panniers. My bike is 31 pounds (approx). I typically run 40-55psi up front and 50-65psi in back. Yes, I am a mutant. No problems thus far in 1000 miles (knock wood).
MileHighMark is offline  
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
jskash
Hybrid Bicycles
6
05-18-14 06:34 PM
dpeters11
Hybrid Bicycles
5
11-13-10 03:58 PM
MrCjolsen
Bicycle Mechanics
22
11-05-10 06:41 PM
hobkirk
Clydesdales/Athenas (200+ lb / 91+ kg)
31
06-26-10 12:11 AM
acaurora
Road Cycling
35
01-17-10 10:34 AM

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
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Thread Tools
Search this Thread

Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service - Your Privacy Choices -

Copyright © 2024 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.