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PostPosted: Sat Jun 17, 2017 10:10 am 
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Joined: Mon Aug 29, 2016 11:19 am
Posts: 405
Hey

I'm interested in filling the groove with something. What have you who have tried this used with good results? I'm thinking transparent and something that doesnt fall off from normal riding easy.

I hardly ever have any flats so for me if the stuff adheres well enough to stay there a few years the better.

Cheers! /a


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PostPosted: Sat Jun 17, 2017 1:23 pm 
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Joined: Fri May 25, 2007 6:43 pm
Posts: 3310
Shoe goo?


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Posted: Sat Jun 17, 2017 1:23 pm 


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PostPosted: Sat Jun 17, 2017 2:22 pm 
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Joined: Tue Jan 19, 2016 7:10 am
Posts: 291
Clear silicone bathtub sealant. I'm intrigued but get just enough flats that I don't think I'll try it.


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PostPosted: Sat Jun 17, 2017 3:26 pm 
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Joined: Fri Jan 29, 2016 12:54 pm
Posts: 64
might be worth a try if you're running tubeless. Advantage if it is black.


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PostPosted: Sat Jun 17, 2017 3:51 pm 
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Joined: Sun May 16, 2010 7:28 pm
Posts: 1166
Is the application for aero? Or what purpose does this serve?


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PostPosted: Sat Jun 17, 2017 3:55 pm 
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Joined: Wed Jul 15, 2015 5:00 pm
Posts: 53
once it is illegal for UCI. Does anyone knows if its still?


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PostPosted: Sat Jun 17, 2017 7:01 pm 
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Joined: Tue May 23, 2006 9:39 pm
Posts: 1064
you would think that the tire companies would have a rim lip to fill the gap...just like they make lips on car tires to prevent the rim touching the curb.

but i suppose all the rim lips are different in size and thickness.

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PostPosted: Sat Jun 17, 2017 7:49 pm 
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Joined: Tue Jan 28, 2014 6:52 pm
Posts: 1521
What are you going to save? 1 watt? It sounds like a giant mess.

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PostPosted: Sat Jun 17, 2017 9:00 pm 
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Joined: Tue Dec 23, 2008 2:57 pm
Posts: 868
Location: NYC
Mavic had/has such a product, called the aero "blade" albeit UCI banned its use.

http://road.cc/content/news/84050-mavic ... ero-blades


https://cycletechreview.com/2012/news/m ... isallowed/

As for using silicone or other to fill gap in search of aero savings, seems like a fools errand....no offense.

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PostPosted: Sun Jun 18, 2017 12:08 am 
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Joined: Mon Aug 29, 2016 11:19 am
Posts: 405
Thank you for all the replies.

I know it's not uci approved. Just about to build a nice deep wheelset and thought I shouldn't overlook such a simple mod to improving the shape.

I remember when doing tilework in the kithen/bathroom that some of these gap fillers are quite elastic and would probably do ok in moving with the tire/rim flex. Only the color might not fit hehe.

/a


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PostPosted: Sun Jun 18, 2017 12:10 am 
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Joined: Mon Aug 29, 2016 11:19 am
Posts: 405
I'll try the clear silicone sealant that was suggested. I'll report back in a few weeks and let you know how it went.

/a


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PostPosted: Sun Jun 18, 2017 12:14 am 
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Joined: Thu Apr 10, 2014 11:06 pm
Posts: 88
Well, I used some silicone to fill the gap, and that stuff is pretty durable. I was able to change tubes without it getting torn up but it was hard to seat it properly when inflating the tube again. It was a major pita to get it off the tire, so look at it as a permanent mod :)


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PostPosted: Sun Jun 18, 2017 6:56 pm 
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Joined: Thu Sep 05, 2013 3:29 pm
Posts: 420
em3 wrote:
Mavic had/has such a product, called the aero "blade" albeit UCI banned its use.

http://road.cc/content/news/84050-mavic ... ero-blades


https://cycletechreview.com/2012/news/m ... isallowed/

As for using silicone or other to fill gap in search of aero savings, seems like a fools errand....no offense.


Maybe a fools errand, but I recall seeing Contador's mechanic doing this in some of those TDF TT tech galleries from several years back. That was with tubulars of course.

The Mavic blade may be disallowed, but are you aware of anything specifically banning this silicone caulk strategy? I would think that, particularly on a tubular, it would be difficult for the UCI to determine if that it was simply an aero mod as it could also help tire retention, and prevent water getting into and weakening the tire/rim bond.


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PostPosted: Sun Jun 18, 2017 7:54 pm 
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Joined: Wed Jul 15, 2015 5:00 pm
Posts: 53
what if a company makes a "clincher" or a "tubular" tire with that shape for specific wheel widths? will it be still UCI illegal?


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PostPosted: Mon Jun 19, 2017 6:58 am 
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Joined: Tue Sep 10, 2013 12:47 am
Posts: 32
dont the cross guys seal their dugast sidewalls with aquaseal? urethane should hold up better in this application than silicone.


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Posted: Mon Jun 19, 2017 6:58 am 


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