Tire Deterioration
07-01-22, 08:47 AM
#1
Full Member
Thread Starter
Join Date: Nov 2019
Location: Greater Chicago Area
Posts: 250
Bikes: 1987 Schwinn Mirada, 1989 Trek 420, 1995 GT Timberline, 1979 Schwinn Super Le Tour, Co-Op DRT 1.3
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 103 Post(s)
Liked 85 Times
in
49 Posts
Tire Deterioration
Ok, not the greatest photo but best I could do so bear with me. The tires on my road bike have developed a sort of separation along a seam near the rim. Look close and you can see how the screwdriver head is folding back an edge. Is this a sign they're giving up the ghost? Tread and everything else is still fine. They're Bontrager T2 tires, about 2.5 years old. Thanks!
07-01-22, 08:59 AM
#2
I'm good to go!
Join Date: Jul 2017
Location: Mississippi
Posts: 14,985
Bikes: Tarmac Disc Comp Di2 - 2020
Mentioned: 51 Post(s)
Tagged: 0 Thread(s)
Quoted: 6192 Post(s)
Liked 4,808 Times
in
3,316 Posts
I've seen others with the same issue. It might cause you to have a failure sooner than not. But the others I've seen were much worse looking and they lasted their owners many rides.
I've wondered if it's caused by the rim cutting through the soft rubber sidewall covering when riding with too low a air pressure or riding on a flatted tire for a time or if it's just sometimes a tire shows up that wasn't the best built off the production line.
It'll probably last a lot longer than you think it will.
I've wondered if it's caused by the rim cutting through the soft rubber sidewall covering when riding with too low a air pressure or riding on a flatted tire for a time or if it's just sometimes a tire shows up that wasn't the best built off the production line.
It'll probably last a lot longer than you think it will.
Likes For Iride01:
07-01-22, 09:01 AM
#3
working on my sandal tan
Join Date: Aug 2011
Location: CID
Posts: 22,629
Bikes: 1991 Bianchi Eros, 1964 Armstrong, 1988 Diamondback Ascent, 1988 Bianchi Premio, 1987 Bianchi Sport SX, 1980s Raleigh mixte (hers), All-City Space Horse (hers)
Mentioned: 98 Post(s)
Tagged: 0 Thread(s)
Quoted: 3871 Post(s)
Liked 2,568 Times
in
1,579 Posts
Looks like the edge of the chafer strip to me. That's an extra layer of fabric bonded around the bead to protect it from abrasion. Totally normal for it to start to peel away at the edge after some use.
Likes For ThermionicScott:
07-01-22, 09:02 AM
#4
Senior Member
Join Date: Dec 2020
Location: Wake Forest, NC
Posts: 5,783
Bikes: 1989 Cinelli Supercorsa
Mentioned: 11 Post(s)
Tagged: 0 Thread(s)
Quoted: 3504 Post(s)
Liked 2,924 Times
in
1,774 Posts
Likes For smd4:
07-01-22, 09:06 AM
#5
Full Member
Thread Starter
Join Date: Nov 2019
Location: Greater Chicago Area
Posts: 250
Bikes: 1987 Schwinn Mirada, 1989 Trek 420, 1995 GT Timberline, 1979 Schwinn Super Le Tour, Co-Op DRT 1.3
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 103 Post(s)
Liked 85 Times
in
49 Posts
I've seen others with the same issue. It might cause you to have a failure sooner than not. But the others I've seen were much worse looking and they lasted their owners many rides.
I've wondered if it's caused by the rim cutting through the soft rubber sidewall covering when riding with too low a air pressure or riding on a flatted tire for a time or if it's just sometimes a tire shows up that wasn't the best built off the production line.
It'll probably last a lot longer than you think it will.
I've wondered if it's caused by the rim cutting through the soft rubber sidewall covering when riding with too low a air pressure or riding on a flatted tire for a time or if it's just sometimes a tire shows up that wasn't the best built off the production line.
It'll probably last a lot longer than you think it will.
07-01-22, 09:08 AM
#6
Senior Member
Join Date: Feb 2012
Location: Rochester, NY
Posts: 18,071
Bikes: Stewart S&S coupled sport tourer, Stewart Sunday light, Stewart Commuting, Stewart Touring, Co Motion Tandem, Stewart 3-Spd, Stewart Track, Fuji Finest, Mongoose Tomac ATB, GT Bravado ATB, JCP Folder, Stewart 650B ATB
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 4200 Post(s)
Liked 3,853 Times
in
2,303 Posts
Agree with the chaff strip often becoming separated just above the rim. This by itself hasn't been a problem for many before you, use to be real common with sew ups then when wired ons became so lightweight we began to see it with non race tires too.
Nice photo showing the question spot BTW.
smd4- Yea, usually its other issues at that high a tire pressure
Andy
Nice photo showing the question spot BTW.
smd4- Yea, usually its other issues at that high a tire pressure
Andy
__________________
AndrewRStewart
AndrewRStewart
Likes For Andrew R Stewart:
07-01-22, 09:20 AM
#7
Senior Member
Join Date: Dec 2020
Location: Wake Forest, NC
Posts: 5,783
Bikes: 1989 Cinelli Supercorsa
Mentioned: 11 Post(s)
Tagged: 0 Thread(s)
Quoted: 3504 Post(s)
Liked 2,924 Times
in
1,774 Posts
07-01-22, 02:22 PM
#8
Senior Member
Join Date: Jan 2009
Location: San Diego, CA
Posts: 3,669
Mentioned: 10 Post(s)
Tagged: 0 Thread(s)
Quoted: 836 Post(s)
Liked 1,061 Times
in
745 Posts
Agree with the chaff strip thing in posts #3 & #6. Have had plenty of those and never an issue. I cut away the threads as they come loose to avoid triggering my loose thread OCD.
Likes For Crankycrank:
