Would you still ride on this tire with the pictured damage?
03-08-10, 08:22 PM
#1
Junior Member
Thread Starter
Join Date: Mar 2010
Posts: 20
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Likes: 0
Liked 0 Times
in
0 Posts
Would you still ride on this tire with the pictured damage?
The pictured tire is a Continental GP4000 (23-622), almost brand new. The small circular divot next to the "V" shaped damage is one of the tread wear indicators on the tire. The tear doesn't penetrate the "Vectran" belt in the tire, but it does appear to go all the way to it.
I don't have much riding experience at this point so I'm curious from folks with a lot more miles under their belts what they would do. I've ridden about 50 miles on the tire since it was damaged (with a spare tire folded up and tucked in with my other gear). I've kept the tire at 100 PSI for those miles, and there's no visible bulging at that pressure.
I'd like to keep riding on it, given that it's almost new and it feels like a shame to replace it. My main concern is that it might blow out on me in some spectacular manner. Much beyond that, I'm fine with changing it on the side of the road instead of at my house if I have to.
EDIT: Sorry about the lighting, I took the photo with my cellphone in my basement, using my headlight to illuminate the tire.
I don't have much riding experience at this point so I'm curious from folks with a lot more miles under their belts what they would do. I've ridden about 50 miles on the tire since it was damaged (with a spare tire folded up and tucked in with my other gear). I've kept the tire at 100 PSI for those miles, and there's no visible bulging at that pressure.
I'd like to keep riding on it, given that it's almost new and it feels like a shame to replace it. My main concern is that it might blow out on me in some spectacular manner. Much beyond that, I'm fine with changing it on the side of the road instead of at my house if I have to.
EDIT: Sorry about the lighting, I took the photo with my cellphone in my basement, using my headlight to illuminate the tire.
Last edited by pessimist; 03-08-10 at 08:23 PM. Reason: Additional information about the lighting
03-08-10, 08:31 PM
#2
Galveston County Texas
Join Date: Nov 2007
Location: In The Wind
Posts: 33,224
Bikes: 02 GTO, 2011 Magnum
Mentioned: 19 Post(s)
Tagged: 0 Thread(s)
Quoted: 1350 Post(s)
Liked 1,246 Times
in
624 Posts
Super glue the cut shut.
Super glue some rubber in the round hole.
Small boot on the inside.
Use it on your rear wheel.
Super glue some rubber in the round hole.
Small boot on the inside.
Use it on your rear wheel.
__________________
Fred "The Real Fred"
Fred "The Real Fred"
Last edited by 10 Wheels; 03-08-10 at 08:35 PM.
03-08-10, 08:33 PM
#3
Senior Member
Join Date: Feb 2006
Posts: 726
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Likes: 0
Liked 0 Times
in
0 Posts
03-08-10, 08:37 PM
#6
Junior Member
Thread Starter
Join Date: Mar 2010
Posts: 20
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Likes: 0
Liked 0 Times
in
0 Posts
And it is already on the rear wheel.
03-08-10, 08:48 PM
#7
Senior Member
Join Date: Dec 2009
Location: Melbourne, Oz
Posts: 9,547
Bikes: https://weightweenies.starbike.com/forum/viewtopic.php?f=10&t=152015&p=1404231
Mentioned: 15 Post(s)
Tagged: 0 Thread(s)
Quoted: 1529 Post(s)
Liked 718 Times
in
510 Posts
If the carcass itself is unaffected, I don't see the point of a boot.
You may want to fill the split with silicone or something though... I doubt superglue would hold it closed, but it might be worth a shot.
You may want to fill the split with silicone or something though... I doubt superglue would hold it closed, but it might be worth a shot.
03-08-10, 08:51 PM
#9
Single-serving poster
Join Date: Aug 2009
Location: Toronto, Canada
Posts: 5,098
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 1 Post(s)
Likes: 0
Liked 2 Times
in
2 Posts
It's fine... just keep an eye on it and do like the other posters say, patch the inside so the inner tube doesn't bulge out.
03-08-10, 08:56 PM
#10
aka Phil Jungels
Let the pressure out of it, glue it shut with super glue, let it sit 24 hours to cure good, reinflate, ride.
03-08-10, 08:58 PM
#11
cab horn
Join Date: Jun 2004
Location: Toronto
Posts: 28,353
Bikes: 1987 Bianchi Campione
Mentioned: 1 Post(s)
Tagged: 0 Thread(s)
Quoted: 42 Post(s)
Likes: 0
Liked 26 Times
in
19 Posts
The pictured tire is a Continental GP4000 (23-622), almost brand new. The small circular divot next to the "V" shaped damage is one of the tread wear indicators on the tire. The tear doesn't penetrate the "Vectran" belt in the tire, but it does appear to go all the way to it.
I don't have much riding experience at this point so I'm curious from folks with a lot more miles under their belts what they would do. I've ridden about 50 miles on the tire since it was damaged (with a spare tire folded up and tucked in with my other gear). I've kept the tire at 100 PSI for those miles, and there's no visible bulging at that pressure.
I'd like to keep riding on it, given that it's almost new and it feels like a shame to replace it. My main concern is that it might blow out on me in some spectacular manner. Much beyond that, I'm fine with changing it on the side of the road instead of at my house if I have to.
EDIT: Sorry about the lighting, I took the photo with my cellphone in my basement, using my headlight to illuminate the tire.
I don't have much riding experience at this point so I'm curious from folks with a lot more miles under their belts what they would do. I've ridden about 50 miles on the tire since it was damaged (with a spare tire folded up and tucked in with my other gear). I've kept the tire at 100 PSI for those miles, and there's no visible bulging at that pressure.
I'd like to keep riding on it, given that it's almost new and it feels like a shame to replace it. My main concern is that it might blow out on me in some spectacular manner. Much beyond that, I'm fine with changing it on the side of the road instead of at my house if I have to.
EDIT: Sorry about the lighting, I took the photo with my cellphone in my basement, using my headlight to illuminate the tire.
1) The cords underneath are cut, and it is more than minor
2) When inflated the tyre visibly bulges or the tube is visible
You can determine this yourself. The picture shows nothing.
03-08-10, 09:37 PM
#12
Senior Member
Join Date: Feb 2005
Location: Oklahoma
Posts: 9,438
Bikes: Trek 5500, Colnago C-50
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 4 Post(s)
Likes: 0
Liked 7 Times
in
6 Posts
Yeah, look at the casing from inside the tire. That's where the tire's strength is. Superglue is OK to hold the rubber closed but it's not enough to hold a cut in the casing cords.
03-09-10, 05:10 AM
#13
Junior Member
Thread Starter
Join Date: Mar 2010
Posts: 20
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Likes: 0
Liked 0 Times
in
0 Posts
Thanks all, from the sound of it I'm not going to worry about it too much. I'll glue it shut and boot it for good measure.
03-09-10, 09:36 AM
#14
Bikaholic
Join Date: Dec 2006
Location: Western, Michigan
Posts: 1,461
Bikes: Trek Fuel 90, Giant OCR, Rans Screamer Tandem
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Likes: 0
Liked 0 Times
in
0 Posts
I have cut tires like this and all have eventually failed. In my experience, the risk of an interrupted trip are worse are not worth the savings. I now keep such tires for use on indoor trainer bikes where a failure is merely an inconvenience.
03-09-10, 10:42 AM
#15
Senior Member
Join Date: Jul 2008
Location: 25 miles northwest of Boston
Posts: 29,552
Bikes: Bottecchia Sprint, GT Timberline 29r, Marin Muirwoods 29er, Trek FX Alpha 7.0
Mentioned: 112 Post(s)
Tagged: 0 Thread(s)
Quoted: 5224 Post(s)
Liked 3,585 Times
in
2,344 Posts
good opportunity to try a new tire!
03-09-10, 10:54 AM
#16
You gonna eat that?
I'm not sure whether that qualifies you as the very best or the very worst person to give advice in this matter. 
__________________
I stop for people / whose right of way I honor / but not for no one.
Originally Posted by bragi 
"However, it's never a good idea to overgeneralize."
I stop for people / whose right of way I honor / but not for no one.
Originally Posted by bragi "However, it's never a good idea to overgeneralize."
03-09-10, 11:14 AM
#17
well hello there
Join Date: May 2005
Location: Point Loma, CA
Posts: 15,430
Bikes: Bill Holland (Road-Ti), Fuji Roubaix Pro (back-up), Bike Friday (folder), Co-Motion (tandem) & Trek 750 (hybrid)
Mentioned: 6 Post(s)
Tagged: 0 Thread(s)
Quoted: 503 Post(s)
Liked 336 Times
in
206 Posts
Superglue plus boot.
__________________
.
.
Two wheels good. Four wheels bad.
.
.
Two wheels good. Four wheels bad.
03-09-10, 11:34 AM
#18
Senior Member
Join Date: Jul 2006
Location: El Segundo, Ca.
Posts: 214
Bikes: '93 Performance R203, '83 Bianchi 980
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Likes: 0
Liked 0 Times
in
0 Posts
shoe-goo from athletic shoe store can be used to fill the hole
03-09-10, 11:42 AM
#20
Senior Member
If the damage doesn't go through the cord you are good to go. If the cords are cut I have 1/32 pipe flange gasket material that is stronger than the tire wall. I super-glue this inside and put a bit of duct tape over it to keep the stiff patch from fretting through the tube.
03-09-10, 01:07 PM
#21
blah blah blah
Join Date: Aug 2009
Posts: 2,520
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 5 Post(s)
Likes: 0
Liked 0 Times
in
0 Posts
If there is no cutting into the cords/belt, can the OP just ride without gluing the rubber shut? What is the main disadvantage of not repairing the cut in the rubber? Thank you, just want to learn...
03-09-10, 01:15 PM
#23
You gonna eat that?
Isn't that cycling is all about??
__________________
I stop for people / whose right of way I honor / but not for no one.
Originally Posted by bragi "However, it's never a good idea to overgeneralize."
I stop for people / whose right of way I honor / but not for no one.
Originally Posted by bragi "However, it's never a good idea to overgeneralize."