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PostPosted: Mon May 29, 2017 9:07 pm 
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Joined: Sun May 28, 2017 1:58 pm
Posts: 2
Just watched a GCN video of Geraint Thomas's TT bike. One of the things mentioned was that on his cranks the mechanics had taped over where the pedals screw into the crank arm in order to smooth airflow. Call me obsessed but I immediately went to my TT bike and did the same. Has anyone else anyone else got any similar obsessions?


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PostPosted: Mon May 29, 2017 10:41 pm 
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Posts: 273
Location: Shetland, Scotland
interesting, I hadn't noticed that. It's UCI illegal ;)


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Posted: Mon May 29, 2017 10:41 pm 


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PostPosted: Mon May 29, 2017 10:58 pm 
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CarlosFerreiro wrote:
interesting, I hadn't noticed that. It's UCI illegal ;)


Any idea why it's banned? Is it a non standard component issue because sticky tape is pretty commonly found and therefore standard. You know it's good when the UCI ban it. :P


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PostPosted: Mon May 29, 2017 11:31 pm 
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Joined: Fri Jun 03, 2016 5:08 pm
Posts: 870
That's ridiculous!

The video for anyone else:
https://www.youtube.com/watch?v=mFVfs7VKZWE

That said, I'm going to do the same tomorrow :D


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PostPosted: Tue May 30, 2017 12:22 am 
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Joined: Fri Mar 03, 2017 3:24 am
Posts: 72
In junior we used to tape underneath the pedals the "hole" in the look (pre Keo) or the shimano spd. I think one of twice we also taped underneath the seat... That never made the difference but that was fun :)


Envoyé de mon iPhone en utilisant Tapatalk


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PostPosted: Tue May 30, 2017 9:53 am 
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Joined: Thu Jan 08, 2009 1:41 pm
Posts: 273
Location: Shetland, Scotland
The UCI don't allow taping over any bolt holes etc on the bike, only use of specific manufacturer supplied plugs.

Clarification guide of the UCI Technical Regulation, page 37
http://www.uci.ch/mm/Document/News/Rule ... nglish.pdf


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PostPosted: Tue May 30, 2017 10:45 am 
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Joined: Thu Apr 10, 2014 11:06 pm
Posts: 81
a great tip from a cyclespeed tours is to use silicone to fill in the gap between the rim and the tyre sort of like the strip mavic made for the cxr60.
Probably not uci legal since the mavic strip was banned too.
https://www.youtube.com/watch?v=3eIZdhSu1ts&t=79s


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PostPosted: Tue May 30, 2017 6:32 pm 
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Joined: Sat Feb 07, 2009 5:52 am
Posts: 503
has anyone actually quantified the aero data in a windtunnel? I recognize a pretty specific figure was quoted (8 watts), but the sceptic in me wants to see a reputable mfg put out some data.


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PostPosted: Tue May 30, 2017 8:03 pm 
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Joined: Mon Mar 01, 2010 8:07 pm
Posts: 795
I always thought about the "ordinary" buckles on fixing straps of the so wonderful wind tunnel tested aero helmets.IMO these could improve in outer shell design as well as better (tighter fit). I wonder why they don't get rid of the whole fixing system and just have a piece of latex strap to hold the helmets in place?

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Posted: Tue May 30, 2017 8:03 pm 


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