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PostPosted: Fri Aug 05, 2016 10:35 pm 
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Posts: 46
Carbon Wheels - The Truth!!!

https://youtu.be/ET1jRVynOBA?t=1m17s


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PostPosted: Sat Aug 06, 2016 7:10 am 
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Posts: 419
It only took me thirty seconds to realize I wasn't ready for the truth.

That was incredibly boring.


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Posted: Sat Aug 06, 2016 7:10 am 


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PostPosted: Sat Aug 06, 2016 8:36 am 
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Posts: 365
To save you 20 minutes of your life, allow me to summarize;

1st 3 minutes = if you buy Chinese carbon rims the quality is variable

Mid 10 minutes = carbon tubs are far better for braking on long descents than clinchers. Many examples of overheated and damaged clincher rims.

13 - 16 minutes = yes you can repair some carbon rims

16 - 20 minutes = disc brakes offer better modulation than rim brakes.

Most likely nothing you didn't already know, although at least the guy is clearly knowledgable and speaks well!

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PostPosted: Sat Aug 06, 2016 9:52 am 
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Posts: 80
I found it interesting, didn't learn anything new (other than a bit more confidence in carbon repairs) but it was presented in an interesting way.

IMHO I think the clincher thing is overplayed. Sure the margin of error is lower than Alu or tubs but, as long as you ride in a way that recognizes that, the newer designs have come a long way.


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PostPosted: Sat Aug 06, 2016 9:59 am 
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Stueys wrote:
I found it interesting, didn't learn anything new (other than a bit more confidence in carbon repairs) but it was presented in an interesting way.

IMHO I think the clincher thing is overplayed. Sure the margin of error is lower than Alu or tubs but, as long as you ride in a way that recognizes that, the newer designs have come a long way.


Whilst working as a guide, I had to descend the Ventoux and the Alpe d'Huez after Tour de France stages. Both were 30'C hot.

The traffic and congestion was so bad that you have no choice but to descend on the brakes. Needless to say my wheels got very hot - (Lightweight Meilenstein tubs). I couldn't stop and let cool as I had to stay with the clients.

On both occasions the front tub itself 'blistered' - it got a bulge in it, meaning that although rideable it eventually had to be replaced. The wheels were fine.

Had they been clinchers I think the rims would have been trashed.

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5 star and bespoke cycle tours in Majorca

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PostPosted: Sat Aug 06, 2016 11:51 am 
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Posts: 133
Location: UT/TX/PA, USA
Part 2

https://www.youtube.com/watch?v=bFdG2NgIc7s


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PostPosted: Sat Aug 06, 2016 1:10 pm 
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Location: NorthEU
You forgot the relevance of spokes and hub design for the wheels stiffness. Also that after sweetspot tension of spokes, it's does not contribute to stiffness gains anymore.
He also mentions that rims is not "really" what makes the wheel stiff. It has more to do with spokes and hubs design.

Alot of bla bla bla here, but also food for thoughts...

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PostPosted: Sat Aug 06, 2016 2:22 pm 
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Posts: 870
german tour mag does the industry's most brutal brake test. some manufacturer's are too scared to send wheels for testing. (specialized roval's come to mind. in the cycling maven video there is one displayed)


here is the thread . buy the issue to learn more instead of making assumptions . reality vs assumptions

viewtopic.php?f=113&t=140537

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PostPosted: Sat Aug 06, 2016 2:38 pm 
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Posts: 3736
I think the biggest takeaway, and again nothing new, is that with no-name stuff you simply DO NOT know what you're getting. They may be using one carbon from one supplier one day, and different carbon from another supplier the next day, and the same goes for resins and even layups. And you also don't know what quality control is being applied. That's "variability" to the extreme. You just don't know.

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PostPosted: Sun Aug 07, 2016 12:21 am 
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There's a dedicated thread for this?! I must have been following the wrong thread viewtopic.php?f=3&t=92907&start=90

If you think this guy is a genius just hang your carbon wheels and call it a day. Go back to aluminum or upgrade to disc.
This clip is like infomercial with topic "The Truth..."

Sent from my iPhone using Tapatalk

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PostPosted: Tue Aug 09, 2016 5:41 am 
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Joined: Sun Aug 07, 2016 8:03 am
Posts: 10
cyclespeed wrote:
To save you 20 minutes of your life, allow me to summarize;

1st 3 minutes = if you buy Chinese carbon rims the quality is variable

Mid 10 minutes = carbon tubs are far better for braking on long descents than clinchers. Many examples of overheated and damaged clincher rims.

13 - 16 minutes = yes you can repair some carbon rims

16 - 20 minutes = disc brakes offer better modulation than rim brakes.

Most likely nothing you didn't already know, although at least the guy is clearly knowledgable and speaks well!





thanks!!


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PostPosted: Tue Aug 09, 2016 6:10 am 
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Joined: Wed Jun 08, 2011 6:08 am
Posts: 669
The wondrous thing of being part of using rims from a branded Chinese maker is the amazing good pleasure of taking apart in their beta testing during use of their products. They are always improving and using you for great knowledge. Buy Chinese, create your wonderful life.


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PostPosted: Tue Aug 09, 2016 7:11 am 
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Posts: 740
:D The real truth is that a $2000 set of wheels is a big waste of money for 99.9% of riders...

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PostPosted: Tue Aug 09, 2016 8:25 am 
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Posts: 225
Location: Boganville, Australia
Yep, $2k wheels are probably a waste of money for most, but I am having fun learning to build them!
This is the second place on WW I have seen these videos linked. I have also seen them on 2 other cycling related FB sites. I am no expert, but I thought most of this was fairly common knowledge and had been for several years.

I always feel like when I see these videos from particular individuals, that it is just click-bait. YMMV.

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Posted: Tue Aug 09, 2016 8:25 am 


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PostPosted: Tue Aug 09, 2016 8:34 am 
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Joined: Thu Jul 19, 2012 6:09 pm
Posts: 770
Location: Loveland, CO
AJS914 wrote:
:D The real truth is that a $2000 set of wheels is a big waste of money for 99.9% of riders...


You're being too modest. The real truth is buying anything is a big waste of money.


Sent from my iPhone using Tapatalk


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