HOT: Active* forum members generally gain 5% discount at starbike.com store!
Weight Weenies
* FAQ    * Search    * Trending Topics
* Login   * Register
HOME Listings Articles FAQ Contact About




Post new topic Reply to topic  [ 66 posts ] 
Go to page Previous  1, 2, 3, 4, 5  Next
Author Message
PostPosted: Sat May 24, 2014 8:12 am 
Offline

Joined: Sat Feb 01, 2014 6:00 pm
Posts: 8
maverick_1 wrote:
@lUcIfEr

Clinchers don't anyhow come off while you just ride along.
IMHO, the tire manufacturer should compensate you if there was indeed a failure in their tires..


Haha sorry, I meant Tublars. Campy Boras and Continentals to be exact.


Top
 Profile  
 
PostPosted: Sat May 24, 2014 8:19 am 
Offline

Joined: Fri Jan 18, 2013 12:37 am
Posts: 82
You can buy insurance to cover your bike in non-race situations. Might be cheap peace of mind if you often have problems with your tyres falling off (!?)

I suspect you might want to expand on your story there before we all go crazy speculating how that happened! Brand of tyre, tube, wheel and pressure please!


Top
 Profile  
 
Posted: Sat May 24, 2014 8:19 am 


Top
  
 
PostPosted: Sat May 24, 2014 8:33 am 
Offline

Joined: Mon Jan 02, 2006 7:10 pm
Posts: 347
No need to quote above

Glue v. tape?


Top
 Profile  
 
PostPosted: Sat May 24, 2014 8:34 am 
Offline

Joined: Sat Feb 01, 2014 6:00 pm
Posts: 8
nickl wrote:
You can buy insurance to cover your bike in non-race situations. Might be cheap peace of mind if you often have problems with your tyres falling off (!?)

I suspect you might want to expand on your story there before we all go crazy speculating how that happened! Brand of tyre, tube, wheel and pressure please!


Ok, heres what happened.
I was on a cycling road, meaning its a smooth road, no bumps, no downhills, no curves. I was cruising at around 35~kmph, and suddenly my tire just pops off the rims.
The Rims were Campy Boras, and I was using Continental Sprinter Tiers with Tublar Cement.
Tires were inflated to 150PSI, which is optimum according to the website.

So again...I have no idea of the culprit.
And no insurance company offers a "crash insurance" for the bike itself in where I live. Sad sad... :cry:

P.S.
The guy PM'ing me about the frame, Im not authorized to send PM's on the forum yet so whoever you are can send me your email will be great ;)


Top
 Profile  
 
PostPosted: Sat May 24, 2014 12:24 pm 
Offline

Joined: Mon Aug 04, 2008 11:09 am
Posts: 338
I'm not completely agreeing there. Titanium and Steel also breaks. In This case I think his steerer hit the top tube. With high end steel that's definitely a dent and though is supposed to be tougher, I have seen it go as well (and yes from well established brands).

A bike quite simply is not made to crash. Usually it survives, but if you have an unlucky spill all bets are off. Doesn't even need to go fast, I have seen top end steel go when a friend of mine keeled over in trackstand during nationals.

I'm hardly an expert, but with 25 years of racing experiences I have seen way too many parts fail to make a sweeping statement about which material is tougher. Tentavily I'd say Oversized Alu is the thing I that's sticking out as safest choice, but that has the disadvantage of being unrepairable. Steel and CF are often repairable, titanium I don't know, but probably very hard/impossible to repair.

No for the OP:
- Your problem was a badly kitted Tubular and has zilch to do with the frame. There's no reason at all to be afarid of C60's, but it's time to review your glueing practices.
- The financial issue (do I dare to ride on a 4k frame) can only be answered by you.

Just don't think that a 4k steel frame is much stronger, chances that it also wouldn't survive that crash are substantial.


Top
 Profile  
 
PostPosted: Sat May 24, 2014 12:52 pm 
Offline

Joined: Mon Jan 02, 2006 7:10 pm
Posts: 347
Yes, that's right tubulars are a new invention. Not at all tried and tested.


Top
 Profile  
 
PostPosted: Sat May 24, 2014 1:19 pm 
Offline

Joined: Mon Aug 04, 2008 11:09 am
Posts: 338
I'm not sure why you are putting up a strawman? Saying Clinchers are tried and tested does not say Tubulars are a new invention.

Now you might disagree about the suggestion for clinchers, but many (dare I say most) of us prefer clinchers for training. It's cheaper and less finicky. So there's nothing wrong suggesting clinchers, especially when the OP had a runaway tubular and is lamenting costs :wink:


Top
 Profile  
 
PostPosted: Sat May 24, 2014 1:34 pm 
Offline

Joined: Sun Jun 17, 2012 3:15 pm
Posts: 183
150psi because the website said it was optimum? It's beginning to make sense.


Top
 Profile  
 
PostPosted: Sat May 24, 2014 1:42 pm 
Offline

Joined: Sun Jun 17, 2012 3:15 pm
Posts: 183
The OP will probably blow one of his new clinchers on a descent now, breaking his new frame in the same place when the tyre rolls off the rim.


Top
 Profile  
 
PostPosted: Sat May 24, 2014 3:04 pm 
Offline
User avatar

Joined: Sun Nov 07, 2010 9:14 pm
Posts: 1295
Something is very wrong here. First, the OP confused clinchers with tubulars. Maybe just a slip or brain fart but when you say you had your tubulars at 150psi because some website said it was "optimum" that's a bit concerning. I can't remember the number exactly, but I know in the Bora manual the max pressure they state for a bora is far below that. I have Boras, and ~115psi in the rear and ~105psi in the front is what I run. I glue my own tires and can't imagine them just popping while just "riding along". In fact, getting them off is a very painstaking process. I feel the pain of crashing a brand new C60 but something was very wrong with the whole tire/wheel/gluing process.


Sent from my iPhone using Tapatalk

_________________
My Colnago C59
My Special Colnago EPQ


Top
 Profile  
 
PostPosted: Sat May 24, 2014 3:06 pm 
Offline
Moderator
User avatar

Joined: Sat Mar 14, 2009 6:08 am
Posts: 7319
Location: Geeeelong!
Franklin wrote:
titanium I don't know, but probably very hard/impossible to repair.

Same as steel.

Not that difficult.

_________________
http://www.nicksquillari.com.au Forum Jedi


Top
 Profile  
 
PostPosted: Sat May 24, 2014 4:19 pm 
Online
User avatar

Joined: Thu May 04, 2006 4:43 pm
Posts: 5083
Location: Wherever there's a mountain beckoning to be climbed
Perhaps a poorly glued tubular could roll of the rim when leaning hard through a high speed turn, perhaps after a long descent with a lot of braking which heated up the rim/glue, but just riding along straight??

http://www.conti-online.com/www/bicycle_de_en/themes/race/sprinter_en.html shows a range of 115-170 psi for Continental Sprinter, although I think the "optimum" is much nearer to the bottom than the top of that range. Inflation to 150 psi, though not optimal for that tire, should not result in it rolling off the rim.

Are you sure you didn't have a blow out, and the blow out caused the tubular to come off the rim? I'm not sure how that would happen, but sounds more plausible than the tubular just rolling off as you are proceeding straight down a smooth road.


Top
 Profile  
 
PostPosted: Sat May 24, 2014 5:55 pm 
Offline

Joined: Sat Feb 01, 2014 6:00 pm
Posts: 8
Really embarassed at mixing up the two types of tires :oops: ...damaging a new C60 will cause the brain to mix up tublars and clinchers haha
On the other hand, my manual for the Boras say "See inflation pressure reccomended by the producer of the tire" which I did.

I know its not a tire blow, I stuck the same tire, inflated again on another rim and let it sit for a few days, no signs of blow/wear/tear.


Top
 Profile  
 
PostPosted: Sat May 24, 2014 6:08 pm 
Offline

Joined: Fri Jun 29, 2012 6:56 pm
Posts: 14
lUcIfEr wrote:
Really embarassed at mixing up the two types of tires :oops: ...damaging a new C60 will cause the brain to mix up tublars and clinchers haha
On the other hand, my manual for the Boras say "See inflation pressure reccomended by the producer of the tire" which I did.

I know its not a tire blow, I stuck the same tire, inflated again on another rim and let it sit for a few days, no signs of blow/wear/tear.


The manual for my Boras says the same thing.


Top
 Profile  
 
PostPosted: Sat May 24, 2014 8:43 pm 
Offline

Joined: Sat Sep 22, 2012 2:22 pm
Posts: 216
I feel your pain regarding the crack in the frame, but I'm really struggling to see how the tyre could just pop off the rim while just riding along. I had a blowout (rear) on my tubs during a race a few weeks back and I managed to come to a controlled stop from about 30mph.

Are you sure you didn't have tubs fitted on a clincher rim or something?


Top
 Profile  
 
Posted: Sat May 24, 2014 8:43 pm 


Top
  
 
Display posts from previous:  Sort by  
Post new topic Reply to topic  [ 66 posts ] 
Go to page Previous  1, 2, 3, 4, 5  Next


Who is online

Users browsing this forum: 12x23, Bing [Bot], dj97223, Exabot [Bot], Google Adsense [Bot], HammerTime2, robertg and 35 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:  

   Similar Topics   Author   Replies   Views   Last post 
There are no new unread posts for this topic. Colnago C60 when will it be?

[ Go to page: 1 ... 29, 30, 31 ]

in Road

markyboy

458

49342

Sun May 25, 2014 3:49 am

fromtrektocolnago View the latest post

There are no new unread posts for this topic. Colnago C60 with EPS.

in Road

oakleaf

1

938

Wed Jul 30, 2014 8:46 pm

ianSWBB View the latest post

This topic is locked, you cannot edit posts or make further replies. Colnago V1-r

in Road

bikewithnoname

1

491

Tue Jun 24, 2014 3:10 pm

5 8 5 View the latest post

There are no new unread posts for this topic. The end of an era for Colnago :(

[ Go to page: 1, 2 ]

in Road

ianSWBB

26

5933

Fri Mar 14, 2014 9:31 am

LionelB View the latest post

There are no new unread posts for this topic. Colnago Master

in Road

GregSherwin

3

929

Mon Dec 09, 2013 4:43 pm

stella-azzurra View the latest post


It is currently Wed Oct 01, 2014 2:30 am

All times are UTC + 1 hour




Advertising   –  FAQ   –  Contact   –  Convert   –  About

© Weight Weenies 2000-2013
hosted by starbike.com


How to get rid of these ads? Just register!


Powered by phpBB