Go Back  Bike Forums > Bike Forums > Road Cycling
Reload this Page >

Ever punched a hole in your carbon rim, repaired it, and lived to tell?

Notices
Road Cycling It is by riding a bicycle that you learn the contours of a country best, since you have to sweat up the hills and coast down them. Thus you remember them as they actually are, while in a motor car only a high hill impresses you, and you have no such accurate remembrance of country you have driven through as you gain by riding a bicycle. -- Ernest Hemingway

Ever punched a hole in your carbon rim, repaired it, and lived to tell?

Old 07-18-21, 02:17 PM
  #1  
str8jakett
I pedal in my sleep...
Thread Starter
 
str8jakett's Avatar
 
Join Date: Jun 2009
Location: Radford VA
Posts: 598

Bikes: Giant TCR Advanced 2015, Giant Propel Advanced Pro 2015, Giant TCR Advanced 0 ISP 2008, Cube Cross Race SL 2018

Mentioned: 5 Post(s)
Tagged: 0 Thread(s)
Quoted: 117 Post(s)
Liked 51 Times in 27 Posts
Ever punched a hole in your carbon rim, repaired it, and lived to tell?

Like many before me, according to the internet, I ran over a drywall screw last Wednesday and punched a hole through the tire and carbon wheel.





Turning to the internet for answers after the incident produced many threads of likewise accidents and the typical 50/50 response of the wheel will be fine with a small repair or you'll die immediately. None of those threads contained an actual experience of making the repair and testing the wheel. So, either all those people are, in fact, dead after trying the repair, or the information is just lacking. Most of those threads were found here so I am hoping to hear from those who have experienced this directly, but also tried to fix the wheel and continued to ride it. I'm not interested in replacing the wheel, or buying another rim brake wheelset anytime soon. I have a backup set I'll just ride those for now.

Last edited by str8jakett; 07-18-21 at 05:09 PM.
str8jakett is offline  
Old 07-18-21, 02:25 PM
  #2  
Iride01
Hits [ENTER] b4 thinking
 
Iride01's Avatar
 
Join Date: Jul 2017
Location: Mississippi
Posts: 8,260

Bikes: '20 Tarmac Disc Comp '91, '78 Raleigh Competition GS

Mentioned: 34 Post(s)
Tagged: 0 Thread(s)
Quoted: 3256 Post(s)
Liked 1,845 Times in 1,311 Posts
I've ridden cracked alloy rims that others wouldn't. So if this falls into the "you won't ride them" category, then let me know. I'll pay for the postage to send them to me. <grin>
Iride01 is offline  
Old 07-18-21, 02:57 PM
  #3  
Maelochs
Senior Member
 
Maelochs's Avatar
 
Join Date: Oct 2015
Posts: 13,074

Bikes: 2015 Workswell 066, 2017 Workswell 093, 2014 Dawes Sheila, 1983 Cannondale 500, 1984 Raleigh Olympian, 2007 Cannondale Rize 4, 2017 Fuji Sportif 1 LE

Mentioned: 143 Post(s)
Tagged: 0 Thread(s)
Quoted: 6296 Post(s)
Liked 1,226 Times in 704 Posts
@Iride01 beat me to it .... otherwise I'd have done long-term endurance testing on my repairs on your old rim for you.

I would never recommend riding that rim again, to anyone else.

I would, for myself, look into to CF patch kits, or even fiberglass patch kits (same basic tech) and then ride the snot out of it .... but I don't go fast so a blowout or even a split rim probably wouldn't kill me. Not sure about anyone else.

Apparently you can get resin, hardener, and CF cloth for about $35 on Amazon Smile.
Maelochs is offline  
Old 07-18-21, 03:34 PM
  #4  
Iride01
Hits [ENTER] b4 thinking
 
Iride01's Avatar
 
Join Date: Jul 2017
Location: Mississippi
Posts: 8,260

Bikes: '20 Tarmac Disc Comp '91, '78 Raleigh Competition GS

Mentioned: 34 Post(s)
Tagged: 0 Thread(s)
Quoted: 3256 Post(s)
Liked 1,845 Times in 1,311 Posts
Originally Posted by Maelochs View Post
@Iride01 beat me to it .... otherwise I'd have done long-term endurance testing on my repairs on your old rim for you.

I would never recommend riding that rim again, to anyone else.

I would, for myself, look into to CF patch kits, or even fiberglass patch kits (same basic tech) and then ride the snot out of it .... but I don't go fast so a blowout or even a split rim probably wouldn't kill me. Not sure about anyone else.

Apparently you can get resin, hardener, and CF cloth for about $35 on Amazon Smile.
eh, you can have them. I just realized they are not disc hubs. I don't care to have to rebuild them on different hubs.

I do agree that I'd just try putting a little resin and cloth on the hole. And likely I'd just put a tube in it, instead of trying to make it hold air. Like anything that's been damaged, I'd just look a little closer every time I looked at it.
Iride01 is offline  
Old 07-18-21, 03:34 PM
  #5  
Bah Humbug
serious cyclist
 
Bah Humbug's Avatar
 
Join Date: Apr 2009
Location: Austin
Posts: 17,468

Bikes: S1, R2, P2

Mentioned: 115 Post(s)
Tagged: 1 Thread(s)
Quoted: 6902 Post(s)
Liked 2,160 Times in 1,155 Posts
Wifey had that happen on her Knot64s. Shop put some resin in it and we haven't thought about it since. Will that work for you? I have no idea - the hole in her rim was much cleaner, as it was from a nail instead of a screw.
Bah Humbug is offline  
Old 07-18-21, 05:13 PM
  #6  
str8jakett
I pedal in my sleep...
Thread Starter
 
str8jakett's Avatar
 
Join Date: Jun 2009
Location: Radford VA
Posts: 598

Bikes: Giant TCR Advanced 2015, Giant Propel Advanced Pro 2015, Giant TCR Advanced 0 ISP 2008, Cube Cross Race SL 2018

Mentioned: 5 Post(s)
Tagged: 0 Thread(s)
Quoted: 117 Post(s)
Liked 51 Times in 27 Posts
Originally Posted by Bah Humbug View Post
Wifey had that happen on her Knot64s. Shop put some resin in it and we haven't thought about it since. Will that work for you? I have no idea - the hole in her rim was much cleaner, as it was from a nail instead of a screw.
This was sort of what I planned on doing. I've been looking for the right resin and a new rim strip. Since I am not tubeless, I'm less concerned about being airtight and more about sealing the hole smoothly and covering well to prevent an internal puncture.
str8jakett is offline  
Old 07-18-21, 05:35 PM
  #7  
tempocyclist
Senior Member
 
tempocyclist's Avatar
 
Join Date: Jun 2021
Location: Australia
Posts: 160

Bikes: 2002 Trek 5200 (US POSTAL), 2020 Canyon Aeroad SL

Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 53 Post(s)
Liked 135 Times in 63 Posts
Damn that's unlucky!

If it were my rim I'd search around for a good carbon repair shop to get it fixed, failing that I'd do it myself with some Google-fu and the tips above.

I recon it'd be fine to ride once the hole is sealed up, carbon is stronger than many give it credit for.
tempocyclist is online now  
Old 07-18-21, 05:42 PM
  #8  
datlas 
Beyond Bogus
 
datlas's Avatar
 
Join Date: Dec 2007
Location: Malvern, PA (20 miles West of Philly)
Posts: 35,762

Bikes: 1986 Alpine (steel road bike), 2009 Ti Habenero, 2013 Specialized Roubaix

Mentioned: 502 Post(s)
Tagged: 2 Thread(s)
Quoted: 15541 Post(s)
Liked 3,508 Times in 1,751 Posts
Originally Posted by str8jakett View Post
This was sort of what I planned on doing. I've been looking for the right resin and a new rim strip. Since I am not tubeless, I'm less concerned about being airtight and more about sealing the hole smoothly and covering well to prevent an internal puncture.
I agree its reasonable to do this but I doubt anyone can prove/disprove how risky this will be.
__________________
Originally Posted by rjones28 View Post
Addiction is all about class.
datlas is offline  
Old 07-18-21, 05:50 PM
  #9  
tomato coupe
Senior Member
 
Join Date: Jul 2009
Posts: 2,350

Bikes: Colnago, Van Dessel, Factor, Cervelo, Ritchey

Mentioned: 3 Post(s)
Tagged: 0 Thread(s)
Quoted: 1440 Post(s)
Liked 2,146 Times in 889 Posts
Ever punched a hole in your carbon rim,

Yes

repaired it,

Yes

and lived to tell?

No
tomato coupe is offline  
Likes For tomato coupe:
Old 07-18-21, 06:26 PM
  #10  
woodcraft
Senior Member
 
woodcraft's Avatar
 
Join Date: Apr 2012
Location: Nor Cal
Posts: 5,834
Mentioned: 15 Post(s)
Tagged: 0 Thread(s)
Quoted: 1734 Post(s)
Likes: 0
Liked 802 Times in 496 Posts
The sky is not falling. Sheesh.

Fill the hole with a bit of epoxy putty and get on with life.

Probably a new rim strip.
woodcraft is offline  
Old 07-26-21, 12:32 PM
  #11  
str8jakett
I pedal in my sleep...
Thread Starter
 
str8jakett's Avatar
 
Join Date: Jun 2009
Location: Radford VA
Posts: 598

Bikes: Giant TCR Advanced 2015, Giant Propel Advanced Pro 2015, Giant TCR Advanced 0 ISP 2008, Cube Cross Race SL 2018

Mentioned: 5 Post(s)
Tagged: 0 Thread(s)
Quoted: 117 Post(s)
Liked 51 Times in 27 Posts
Still alive. Only one ride though, I didn't die. Resin repair over the hole, new rim strip, patched the tire.








Why all the needless photos you ask? Just to show the terrain. I rarely ride with people so since today was with a friend, I didn't take it easy on this wheel at all. 50 miles, 5k, some rough pavement, gravel, and a descent I wouldn't even drive down. For future Google searches, they'll at least know I made it that far before the wheel exploded.
str8jakett is offline  
Likes For str8jakett:
Old 07-29-21, 07:05 AM
  #12  
Andy Somnifac 
Shut up legs.
 
Andy Somnifac's Avatar
 
Join Date: Aug 2009
Posts: 1,260

Bikes: Too many.

Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 74 Post(s)
Liked 142 Times in 70 Posts
Originally Posted by str8jakett View Post
Still alive. Only one ride though, I didn't die. Resin repair over the hole, new rim strip, patched the tire.
How can you be sure? Still posting in here sounds like it could be part of some eternal punishment.
__________________


Andy Somnifac is offline  
Likes For Andy Somnifac:
Old 07-31-21, 03:24 PM
  #13  
pcunite
Member
 
pcunite's Avatar
 
Join Date: May 2006
Posts: 44

Bikes: 2016 Salsa Warbird 105

Mentioned: 1 Post(s)
Tagged: 0 Thread(s)
Quoted: 12 Post(s)
Liked 7 Times in 4 Posts
Originally Posted by str8jakett View Post
Beautiful area.
pcunite is offline  
Old 07-31-21, 04:11 PM
  #14  
Seattle Forrest
Senior Member
 
Seattle Forrest's Avatar
 
Join Date: Mar 2010
Location: Seattle, WA
Posts: 22,129
Mentioned: 78 Post(s)
Tagged: 0 Thread(s)
Quoted: 15215 Post(s)
Liked 6,400 Times in 3,626 Posts
Originally Posted by str8jakett View Post
Why all the needless photos you ask?
​​​​​​More please!
Seattle Forrest is offline  

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


Thread Tools
Search this Thread

Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service - Do Not Sell My Personal Information -

Copyright 2021 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.