Weight Weenies
* FAQ    * Search    * Trending Topics
* Login   * Register
HOME Listings Blog NEW Galleries NEW FAQ Contact About Impressum
It is currently Wed Sep 20, 2017 11:20 pm

All times are UTC+01:00




Post new topic  Reply to topic  [ 13 posts ] 
Author Message
PostPosted: Mon Sep 11, 2017 6:02 pm 
Offline

Joined: Wed Aug 30, 2017 8:21 pm
Posts: 11
So what are people riding PSI wise for races like crits , RRs and such on their tubulars that are wider.

I have aero 58s with Veloflex Roubaix on them, and 100 PSI felt bit much.


Top
   
PostPosted: Mon Sep 11, 2017 7:36 pm 
Offline
User avatar

Joined: Thu Oct 09, 2008 4:55 am
Posts: 453
Location: US
I ride my VR's at 90 in the back and 85-90 in the front. This is the first set of the wider 25's I've had, but I've had the 24's in the past.

I'm very happy with them so far, and these pressures seem pretty good to me.


Top
   
Posted: Mon Sep 11, 2017 7:36 pm 


Top
   
 
PostPosted: Mon Sep 11, 2017 8:14 pm 
Offline
User avatar

Joined: Sat Sep 05, 2009 11:20 am
Posts: 1464
Changing the width of a tubular rim doesn't affect the volume of the tyre like a wider clincher rim does.

And by that I mean at all.

_________________
"Step forward the climber and all those who worship at the altar of lightness" - R. Millar


Top
   
PostPosted: Wed Sep 13, 2017 10:20 am 
Offline

Joined: Fri Dec 15, 2006 7:45 pm
Posts: 4400
Location: Natovi Landing
100 - 110 psi

Just the same as with 22/23s ...

_________________
----------------------------------------
Stiff, Light, Aero - Pick Three!! :thumbup:


Top
   
PostPosted: Wed Sep 13, 2017 12:11 pm 
Offline
User avatar

Joined: Sun Nov 06, 2005 7:27 pm
Posts: 633
OP, I think PSI info is a bit meaningless without knowing the weight of the rider. How much do you weigh?

_________________
“If you save your breath I feel a man like you can manage it. And if you don't manage it, you'll die. Only slowly, very slowly, old friend.”


Top
   
PostPosted: Wed Sep 13, 2017 1:32 pm 
Offline

Joined: Sat Dec 13, 2003 2:25 am
Posts: 4943
Location: Canada
I would tend to agree with that. I weigh 59-60 and run 25s on some rear tires. I find that there is no problem running them under 100 in the dry. There seems to be enough volume to prevent them from pinch-flatting on the deep rimbeds seen on many of the modern aero wheels.


Top
   
PostPosted: Wed Sep 13, 2017 4:04 pm 
Offline
Moderator

Joined: Tue Jan 17, 2012 4:01 pm
Posts: 1536
Location: Downtown Los Angeles, CA
At 70kg I run the Roubaix at 70/85. Just use this as a base for the minimum pressure you can run and adjust from there:

http://www.dorkypantsr.us/bike-tire-pre ... lator.html

_________________
Strava
Current Stable. The Snob Machine | The Crumpton
The Ex's. LS Siena: 6.21kg | Parlee Z5 SLi: 5.9kg | LS Xicon: 5.76kg | C59: 5.7kg | Cervelo R5ca: 5.09kg | Fuji Altamira SE - 6.2kg | Scott Foil - 6.2kg | Evo - 5.18kg | LS Classic - 6.7kg


Top
   
PostPosted: Thu Sep 14, 2017 3:44 am 
Offline

Joined: Wed Aug 30, 2017 8:21 pm
Posts: 11
I weigh 61-62 kg


Top
   
PostPosted: Thu Sep 14, 2017 4:23 am 
Offline

Joined: Thu Jun 28, 2012 10:52 pm
Posts: 315
Location: eNZed
Have a read here https://cyclingtips.com/2017/05/what-is ... ressure-2/

_________________
Less is more.


Top
   
PostPosted: Thu Sep 14, 2017 7:30 am 
Offline
in the industry

Joined: Sat May 12, 2012 7:25 pm
Posts: 3077
Location: Glermsford, Suffolk U.K
Why not just experiment. You don't need advise you just need try try different pressures to find what you like.

_________________
www.thecycleclinic.co.uk


Top
   
PostPosted: Thu Sep 14, 2017 8:09 am 
Offline
User avatar

Joined: Sun Jun 18, 2006 10:29 am
Posts: 6529
Location: Athens, Greece
80-100psi, I weight 78kg-80kg

_________________
My 6538gr TIME Skylon
My 9733gr COLNAGO Master X-light


Top
   
PostPosted: Thu Sep 14, 2017 5:42 pm 
Offline

Joined: Wed Aug 30, 2017 8:21 pm
Posts: 11
thanks mainly just looking for a good baseline and where to begin. Now I am debating between making a few transition to tubulars all the time, training and racing.. Since need a second set of wide wheels for pit (or follow car) for racing. Cant imagine having to swap to my cheap 19 width rims in a race if flat haha


Top
   
PostPosted: Fri Sep 15, 2017 11:52 am 
Offline
User avatar

Joined: Sun Nov 06, 2005 7:27 pm
Posts: 633
At 68 kg, I've found that 80/85 in 25mm Roubaix on the wider Bora rims is the ideal feel for me, though I did get one pinch flat from a sharp rock.

_________________
“If you save your breath I feel a man like you can manage it. And if you don't manage it, you'll die. Only slowly, very slowly, old friend.”


Top
   
Posted: Fri Sep 15, 2017 11:52 am 


Top
   
 
Display posts from previous:  Sort by  
Post new topic  Reply to topic  [ 13 posts ] 

   Similar Topics   Author   Replies   Views   Last post 
There are no new unread posts for this topic. wider rims --> more sidewall flats?

[ Go to page: 1 2 ]

in Road

carpetrunner

15

1796

Fri Oct 21, 2016 6:55 am

Fiery View the latest post

There are no new unread posts for this topic. Light alloy tubular rims

[ Go to page: 1 2 ]

in Everything wheels

nemeseri

22

3367

Tue May 09, 2017 9:55 pm

addictR1 View the latest post

There are no new unread posts for this topic. Deepest section alloy tubular rims

in Everything wheels

LouisN

6

628

Wed Apr 05, 2017 8:28 pm

LouisN View the latest post

There are no new unread posts for this topic. Wide tubular tires on narrow rims

[ Go to page: 1 2 ]

in Everything wheels

RyanH

21

1131

Sun Sep 17, 2017 11:54 pm

RyanH View the latest post

There are no new unread posts for this topic. Transferring hubs & spokes from tubular to clincher rims

in Everything wheels

jspaceman

7

264

Sat Aug 19, 2017 5:53 am

Mackers View the latest post


All times are UTC+01:00


Who is online

Users browsing this forum: No registered users and 6 guests


You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot post attachments in this forum

Search for:
Jump to:  
Powered by phpBB® Forum Software © phpBB Limited