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


Go Back   > >

Bicycle Mechanics Broken bottom bracket? Tacoed wheel? If you're having problems with your bicycle, or just need help fixing a flat, drop in here for the latest on bicycle mechanics & bicycle maintenance.

User Tag List

Reply
 
Thread Tools Search this Thread
Old 05-12-10, 07:46 PM   #1
adamant
Senior Member
Thread Starter
 
adamant's Avatar
 
Join Date: Sep 2008
Location: n.j.
Bikes: Specialized Roubaix pro / Specialized Stumpjumper xtr
Posts: 129
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Roubaix pro carbon handlebar cracked

Roubaix pro carbon handlebar cracked

--------------------------------------------------------------------------------
yep i cracked her.. handlebar came loose and i torqued her down can cracked the center.

i replaced them with aluminum ones.i am not concerned with a few grams
adamant is offline   Reply With Quote
Old 05-12-10, 08:04 PM   #2
operator
cab horn
 
Join Date: Jun 2004
Location: Toronto
Bikes: 1987 Bianchi Campione
Posts: 28,306
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
And the point of this thread is what? Learn proper torque values?
operator is offline   Reply With Quote
Old 05-12-10, 08:07 PM   #3
adamant
Senior Member
Thread Starter
 
adamant's Avatar
 
Join Date: Sep 2008
Location: n.j.
Bikes: Specialized Roubaix pro / Specialized Stumpjumper xtr
Posts: 129
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
where can that information be found beside contacting the manufacture?
adamant is offline   Reply With Quote
Old 05-13-10, 12:00 AM   #4
Chris_W
Gear Combo Guru
 
Chris_W's Avatar
 
Join Date: May 2007
Location: Switzerland
Bikes: Spec' Tarmac (road), Ridley Fenix (commuter & fast tourer), Salsa Mamasita (MTB), CoMo Speedster (tandem), Surly Big Dummy (cargo), Airnimal (folder)
Posts: 2,241
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Torque ratings are written directly on a lot of components now, especially carbon, but maybe it was hidden underneath the clamp. Otherwise, you might want to try one of these made by Ritchey, its a torque key with just one torque setting that is correct for the majority of stems and bars, the only problem is that it only has a 4mm allen key (which means that it works well with Ritchey's high-end equipment).

Attached Images
File Type: jpg 39478..jpg (37.2 KB, 2 views)
Chris_W is offline   Reply With Quote
Old 05-13-10, 12:33 AM   #5
vredstein
Senior Member
 
vredstein's Avatar
 
Join Date: Aug 2008
Location: Tucson, Arizona
Bikes: '02 Lemond Buenos Aires, '98 Fuji Touring w/ Shimano Nexus premium, '06 Jamis Nova 853 cross frame set up as commuter, '03 Fuji Roubaix Pro 853 back up training bike
Posts: 704
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Quote:
Originally Posted by adamant View Post
where can that information be found beside contacting the manufacture?
Even if you could find the info elsewhere, getting it directly from the manufacturer is the best source. While you're at it, you can ask whether they recommend any particular type of stem, any stem's to avoid, etc.
vredstein is offline   Reply With Quote
Old 05-13-10, 05:33 AM   #6
Chombi 
Senior Member
 
Chombi's Avatar
 
Join Date: Jul 2009
Bikes: 1986 Alan Record Carbonio, 1985 Vitus Plus Carbone 7, 1984 Peugeot PSV, 1972 Line Seeker, 1986(est.) Medici Aerodynamic (Project), 1985(est.) Peugeot PY10FC
Posts: 10,853
Mentioned: 5 Post(s)
Tagged: 0 Thread(s)
Quoted: 27 Post(s)
That's the problem sometimes with CF components....they're like nitroglycerine.....be rough with them and they can "explode" on you......
We never needed to worry too much about exacting torque values before CF came into the scene. I felt kinda strange telling my teenage nephew who is really getting into biking and had just bought his first carbon framed bike, that he has to remember to be careful when tightening fittings and components on his frame. I know I had to warn him about it, but me not owning a new CF bike, is just as clueless about how you really deal with it.

Chombi
Chombi 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 08:32 PM.