Cycling and bicycle discussion forums. 
   Click here to join our community Log in to access your Control Panel  


Go Back   > >

General Cycling Discussion Have a cycling related question or comment that doesn't fit in one of the other specialty forums? Drop on in and post in here! When possible, please select the forum above that most fits your post!

User Tag List

Reply
 
Thread Tools Search this Thread
Old 12-11-13, 09:13 PM   #26
tcarl
tcarl
 
Join Date: Dec 2010
Location: St. Louis, MO
Bikes: Roark, Waterford 1100, 1987 Schwinn Paramount, Nishiki Professional, Bottecchia, 2 Scattantes, 3 Cannondale touring bikes, mtn. bike, cyclocross, hybrid, 1940's era Schwinn
Posts: 456
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 3 Post(s)
Quote:
Originally Posted by rekmeyata View Post
At your weight using 23's was not idea, if you add 240 plus another 20 for bike and kit and accessories you should have been running at least 150 psi in the rear and no tire is rated for that pressure! Even at your now 224 plus the 20 you would still have to use at least 140 psi in the rear, very few tires are rated that high. The very smallest tire you should be using is a 25 and that's marginal!
I'm not going to agree with this either. I weigh about 240, always ride 23's with about 100-110 lbs. pressure and have never had any problem. I don't know what any "chart" says - I've never seen one, but I do think that if this was going to be a problem I would have discovered it by now. I've been riding these since the 1970's. In your defense however, I will admit that when I know I'll be riding on rough, dirty urban city streets I do ride 25's, but this is primarily for more flat protection. Somewhat off topic, but related - I do ride sturdy wheels. Almost all my rear wheels are 36 spoke, 14 ga.
tcarl is offline   Reply With Quote
Old 12-11-13, 11:20 PM   #27
chaadster
Thread Killer
 
Join Date: Aug 2008
Location: Ann Arbor, MI
Bikes: '15 Kinesis Racelight 4S, '76 Motebecane Gran Jubilée
Posts: 7,882
Mentioned: 4 Post(s)
Tagged: 0 Thread(s)
Quoted: 213 Post(s)
Quote:
Originally Posted by tcarl View Post
...I do think that if this was going to be a problem I would have discovered it by now. I've been riding these since the 1970's.


chaadster is offline   Reply With Quote
Old 12-12-13, 11:15 AM   #28
Retro Grouch 
Senior Member
 
Retro Grouch's Avatar
 
Join Date: Feb 2004
Location: St Peters, Missouri
Bikes: Rans Rockst (Retro rocket) Rans Enduro Sport (Retro racket) Catrike 559, Merin Bear Valley (beater bike).
Posts: 26,736
Mentioned: 2 Post(s)
Tagged: 0 Thread(s)
Quoted: 140 Post(s)
Quote:
Originally Posted by rekmeyata View Post
ALL tires can handle, or should handle, double the psi that's on the sidewall, that is their safety margin,
I hear that a lot but I have doubts. Do you have an industry source for that statement or is it just rumor?

If true, there should be a test protocol document somewhere that specifies what kind of rim tires are tested on.
__________________
My greatest fear is all of my kids standing around my coffin and talking about "how sensible" dad was.
Retro Grouch is online now   Reply With Quote
Old 12-12-13, 05:02 PM   #29
dynaryder
PatronSaintOfDiscBrakes
 
dynaryder's Avatar
 
Join Date: Apr 2005
Location: BicycleSPACE warehouse in SW Washington DC
Bikes:
Posts: 6,983
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 2 Post(s)
^^^I'm envisioning a new Mythbusters episode
__________________

C'dale BBU('05 and '09)/Super Six/Hooligan8and 3,Kona Dew Deluxe,Novara Buzz/Safari,Surly Big Dummy,Marin Pt Reyes,Giant Defy 1,Schwinn DBX SuperSport,Dahon Speed Pro TT,Brompton S6L/S2E-X
dynaryder is offline   Reply With Quote
Old 12-12-13, 05:47 PM   #30
Null66
Senior Member
 
Null66's Avatar
 
Join Date: Jun 2013
Location: Garner, NC 27529
Bikes: Built up DT, 2007 Fuji tourer (donor bike, RIP), 1995 1220 Trek
Posts: 2,103
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
I am also a clyde... Well a pachy.

I've been told the rims can also only handle so much pressure. This was dependent upon pressure, tire width, shape and rim characteristics...
Null66 is offline   Reply With Quote
Reply


Thread Tools Search this Thread
Search this Thread:

Advanced Search

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



All times are GMT -6. The time now is 02:48 PM.