Rear tire gone bad??
#1
Senior Member
Thread Starter
Join Date: Mar 2011
Location: Omaha, NE
Posts: 51
Bikes: Trek 1000, Marin San Rafael, Scott CR 1 Team
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Likes: 0
Liked 0 Times
in
0 Posts
Rear tire gone bad??
I've had Michelin Krylions mounted on PSIMETs for over 1 year now. Not a single flat until now.
Now, I can't keep air in the rear and I've replaced the tube 3X times with the same result. At night, tire inflated. In the morning, tire completely deflated.
The Velox rimtape appears to be in good shape, as does the rims and interior of tire.
Suggestions/possible solutions?
Now, I can't keep air in the rear and I've replaced the tube 3X times with the same result. At night, tire inflated. In the morning, tire completely deflated.
The Velox rimtape appears to be in good shape, as does the rims and interior of tire.
Suggestions/possible solutions?
#3
Senior Member
Join Date: Jun 2012
Posts: 52
Bikes: 2010 Caad 9-4
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Likes: 0
Liked 0 Times
in
0 Posts
Yes, remove the tube and inflate it to see where the leak is. That might help figure out the problem. If it's in the outer surface of the tube, there must be something in the tire causing the problem. If it's a "snakebite" type puncture, maybe you're being too rough when installing it.

#4
pan y agua
Join Date: Aug 2005
Location: Jacksonville
Posts: 31,240
Bikes: Willier Zero 7; Merlin Extralight; Calfee Dragonfly tandem, Calfee Adventure tandem; Cervelo P2; Motebecane Ti Fly 29er; Motebecanne Phantom Cross; Schwinn Paramount Track bike
Mentioned: 17 Post(s)
Tagged: 0 Thread(s)
Quoted: 1409 Post(s)
Liked 636 Times
in
335 Posts
First rule of fixing flats: determine what caused the flat.
__________________
You could fall off a cliff and die.
You could get lost and die.
You could hit a tree and die.
OR YOU COULD STAY HOME AND FALL OFF THE COUCH AND DIE.
You could fall off a cliff and die.
You could get lost and die.
You could hit a tree and die.
OR YOU COULD STAY HOME AND FALL OFF THE COUCH AND DIE.
#5
Senior Member
Join Date: Apr 2010
Location: Fredericton, NB, Canada
Posts: 1,430
Bikes: 2010 S1, 2011 F75X
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Likes: 0
Liked 1 Time
in
1 Post
Puncture on outside of tube - tire problem.
Puncture on inside of tube - rim problem.
"Slit" in tube - bead failure
Puncture on inside of tube - rim problem.
"Slit" in tube - bead failure
#6
Middle-Aged Member
Join Date: Apr 2011
Location: Mesa, AZ
Posts: 2,276
Bikes: Bianchi Infinito CV 2014, TREK HIFI 2011, Argon18 E-116 2013
Mentioned: 1 Post(s)
Tagged: 0 Thread(s)
Quoted: 24 Post(s)
Likes: 0
Liked 0 Times
in
0 Posts
you might have a 'Michelin wire' somewhere in the tyre. along with identifying where the hole is in the tube... turn the tyre inside out and feel along the surface for irregularities...
Last edited by MikeyBoyAz; 06-28-12 at 08:51 AM.
#7
Senior Member
Join Date: Apr 2005
Location: Northern California
Posts: 10,879
Mentioned: 2 Post(s)
Tagged: 0 Thread(s)
Quoted: 104 Post(s)
Likes: 0
Liked 5 Times
in
5 Posts
Yes, remove the tube and inflate it to see where the leak is. That might help figure out the problem. If it's in the outer surface of the tube, there must be something in the tire causing the problem. If it's a "snakebite" type puncture, maybe you're being too rough when installing it. 

#8
Super Moderator
Join Date: Jul 2004
Location: Ffld Cnty Connecticut
Posts: 21,803
Bikes: Old Steelies I made, Old Cannondales
Mentioned: 10 Post(s)
Tagged: 0 Thread(s)
Quoted: 1160 Post(s)
Liked 840 Times
in
558 Posts
Run a ball of cotton around the inside of the tire. It may snag on whatever's causing the flat. Or, as suggested, you are pinching it during installation.
__________________
Bikes: Old steel race bikes, old Cannondale race bikes, less old Cannondale race bike, crappy old mtn bike.
FYI: https://www.bikeforums.net/forum-sugg...ad-please.html
Bikes: Old steel race bikes, old Cannondale race bikes, less old Cannondale race bike, crappy old mtn bike.
FYI: https://www.bikeforums.net/forum-sugg...ad-please.html
#9
Senior Member
Join Date: Oct 2008
Posts: 933
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Likes: 0
Liked 0 Times
in
0 Posts
#10
Senior Member
Thread Starter
Join Date: Mar 2011
Location: Omaha, NE
Posts: 51
Bikes: Trek 1000, Marin San Rafael, Scott CR 1 Team
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Likes: 0
Liked 0 Times
in
0 Posts
Thank you all for your kind suggestions.
Tonight, I put 3 tubes in the dunk tank. All 3 had a pin prick leak on the INSIDE of the tube.
The Velox visually appears to be in good condition. No spokes are sticking through. I've run both a cloth & bare finger around the rim several times and no sharp points are apparent.
Thoughts?
Tonight, I put 3 tubes in the dunk tank. All 3 had a pin prick leak on the INSIDE of the tube.
The Velox visually appears to be in good condition. No spokes are sticking through. I've run both a cloth & bare finger around the rim several times and no sharp points are apparent.
Thoughts?
#12
Senior Member
Thread Starter
Join Date: Mar 2011
Location: Omaha, NE
Posts: 51
Bikes: Trek 1000, Marin San Rafael, Scott CR 1 Team
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Likes: 0
Liked 0 Times
in
0 Posts
#13
Senior Member
Join Date: Jun 2004
Location: Northern Nevada
Posts: 3,811
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 3 Post(s)
Likes: 0
Liked 0 Times
in
0 Posts
One thing that helps with this is to install the tire so the label is aligned with the valve hole in the rim. Then when you find the puncture in the tube, you'll know where to look on the tire.
#14
Expanding Member
Join Date: Jan 2010
Posts: 7,159
Bikes: Retrospec Judd, Dahon Boardwalk, Specialized Langster
Mentioned: 31 Post(s)
Tagged: 0 Thread(s)
Quoted: 6382 Post(s)
Liked 5,018 Times
in
2,913 Posts
Rim tape is very inexpensive. If your holes are on the inside of the tube just replace that rim tape. It doesn't take hardly any exposed nipple bed to cause this type of puncture. I had the same problem some years ago. Really irritating.
#16
Senior Member
#17
Expanding Member
Join Date: Jan 2010
Posts: 7,159
Bikes: Retrospec Judd, Dahon Boardwalk, Specialized Langster
Mentioned: 31 Post(s)
Tagged: 0 Thread(s)
Quoted: 6382 Post(s)
Liked 5,018 Times
in
2,913 Posts