tubes - patch or replace
#1
tubes - patch or replace
I've been fairly lucky with regards to flats but last week I went to get my bike out of the garage and noticed the rear tire was completely without air. Turns out there was a pin hole on the outer (riding) side of the tube. It was near a slight ridge in the tube (looked sort of like a seam). No holes in the tire that I could see.
Patching tubes has yielded mixed results for me in the past. Maybe I'm using a bad patch kit or I just suck at it.
Do most commuters successfully patch their tubes or do they just toss them and use another one after a flat? I hate to throw something away needlessly but I don't want to have to deal with a leaking patch either.
Thanks!
Patching tubes has yielded mixed results for me in the past. Maybe I'm using a bad patch kit or I just suck at it.
Do most commuters successfully patch their tubes or do they just toss them and use another one after a flat? I hate to throw something away needlessly but I don't want to have to deal with a leaking patch either.
Thanks!
#2
Senior Member

Joined: Dec 2003
Posts: 11,013
Likes: 24
From: Tucson, AZ
Bikes: Custom Zona c/f tandem + Scott Plasma single
Carry a spare trube whebn riding. Got a flat? Check inside of tire with fingers for pointed objects (glass, thorn, tiny piece of metal from steel belted radials, etc) and put in new tube and proceed.
At home patch tube and double check if patch is holding.
Proper technique for patching is essential. Find leak/puncture in tube; scuff area with that little piece of sandpaper; apply the glue; put match/lighter to glue and then immediately put on the patch.
At home patch tube and double check if patch is holding.
Proper technique for patching is essential. Find leak/puncture in tube; scuff area with that little piece of sandpaper; apply the glue; put match/lighter to glue and then immediately put on the patch.
#3
Crankenstein
Joined: May 2006
Posts: 4,037
Likes: 3
From: Spokane
Bikes: Novara Randonee (TankerBelle)
I've been fairly lucky with regards to flats but last week I went to get my bike out of the garage and noticed the rear tire was completely without air. Turns out there was a pin hole on the outer (riding) side of the tube. It was near a slight ridge in the tube (looked sort of like a seam). No holes in the tire that I could see.
Patching tubes has yielded mixed results for me in the past. Maybe I'm using a bad patch kit or I just suck at it.
Do most commuters successfully patch their tubes or do they just toss them and use another one after a flat? I hate to throw something away needlessly but I don't want to have to deal with a leaking patch either.
Thanks!
Patching tubes has yielded mixed results for me in the past. Maybe I'm using a bad patch kit or I just suck at it.
Do most commuters successfully patch their tubes or do they just toss them and use another one after a flat? I hate to throw something away needlessly but I don't want to have to deal with a leaking patch either.
Thanks!
I patch... some of my tubes have a half dozen or more patches on them. I've had very good luck with Park Tools pre-glued patch kits. Comes out to about 50 cents per patch... much better than buying a new tube every time I get a hole.
#4
Trans-Urban Velocommando
Joined: Nov 2006
Posts: 2,400
Likes: 0
From: Lenexa, KS
Bikes: 06 Trek 1200 - 98 DB Outlook - 99 DB Sorrento
I carry one spare tube and patches with me.
On my road bike, I just use CO2 and carry a few spares (as well as a schrader adapter) because I've had bad luck with small pumps being able to fill up high-pressure tubes without taking forever and being more trouble than it's worth.
On my MTB and hybrid I carry a cheapo hand pump that can inflate to 50PSI or so without any problems or feeling like my arm will fall off.
Either way, I try to find the offending prickly, clear it out, put a new tube in, and then patch the punctured tube upon arrival to my destination. It then gets tucked away to become the new spare tube. Like the above poster, many of my tubes have several patches, and they hold just fine.
On my road bike, I just use CO2 and carry a few spares (as well as a schrader adapter) because I've had bad luck with small pumps being able to fill up high-pressure tubes without taking forever and being more trouble than it's worth.
On my MTB and hybrid I carry a cheapo hand pump that can inflate to 50PSI or so without any problems or feeling like my arm will fall off.
Either way, I try to find the offending prickly, clear it out, put a new tube in, and then patch the punctured tube upon arrival to my destination. It then gets tucked away to become the new spare tube. Like the above poster, many of my tubes have several patches, and they hold just fine.
#5
Senior Member

Joined: Jun 2004
Posts: 1,930
Likes: 78
From: Tucson, AZ
Bikes: 2025 Enve Fray with SRAM Rival, 1984 Trek 720 with a Nexus hub, 2016 Cannondale Synapse
I carry one or two tube with and patch tubes at home when I have the time to do a good job at it. I have some tubes with several patches ( i think my current max is 6 or 7) that I still use. I have heard of tubes with 20 patches on them. I don't think I have bought tubes in a year or two. I have 6 or 7 tubes for each bike (different tire sizes).
#7
Crankenstein
Joined: May 2006
Posts: 4,037
Likes: 3
From: Spokane
Bikes: Novara Randonee (TankerBelle)
I carry one or two tube with and patch tubes at home when I have the time to do a good job at it. I have some tubes with several patches ( i think my current max is 6 or 7) that I still use. I have heard of tubes with 20 patches on them. I don't think I have bought tubes in a year or two. I have 6 or 7 tubes for each bike (different tire sizes).
Yes, they were two separate holes... the second several months after the first. Holds air just fine.
#8
Senior Member
Joined: Jul 2007
Posts: 224
Likes: 0
From: Melbourne, Australia
Bikes: Giant CRX
How long do average-quality tubes last? I patched a tube three times in a row a couple of weeks back - as soon as I inflated it it got another hole in it. Threw it out and replaced it with the spare. Today, threw the spare out in disgust as I repaired a hole then it split length-wise as soon as I pumped it up. Both tubes were about 2 years old. Size was 700 x 40 pumped to 70psi.
#9
cyclopath
Joined: Apr 2006
Posts: 5,264
Likes: 6
From: Victoria, BC
Bikes: Surly Krampus, Surly Straggler, Pivot Mach 6, Bike Friday Tikit, Bike Friday Tandem, Santa Cruz Nomad
Patching tubes has yielded mixed results for me in the past. Maybe I'm using a bad patch kit or I just suck at it.
Do most commuters successfully patch their tubes or do they just toss them and use another one after a flat? I hate to throw something away needlessly but I don't want to have to deal with a leaking patch either.
Thanks!
Do most commuters successfully patch their tubes or do they just toss them and use another one after a flat? I hate to throw something away needlessly but I don't want to have to deal with a leaking patch either.
Thanks!
My two tips for patching tubes are:
1) let the glue dry fully before applying the patch
2) use a pen and really rub the patch down firmly on a hard surface - especially the edges
Once you are really done with a tube keep it around and cut it up to make rubber bands or to use under clamps so they don't slip, etc...
#10
When ridng I change to another tube, when I get home I check the flat tube, patch if possible, and then use that tueb as a spare. I don't patch on the road unles absolutely needed.
#11
Trans-Urban Velocommando
Joined: Nov 2006
Posts: 2,400
Likes: 0
From: Lenexa, KS
Bikes: 06 Trek 1200 - 98 DB Outlook - 99 DB Sorrento
How long do average-quality tubes last? I patched a tube three times in a row a couple of weeks back - as soon as I inflated it it got another hole in it. Threw it out and replaced it with the spare. Today, threw the spare out in disgust as I repaired a hole then it split length-wise as soon as I pumped it up. Both tubes were about 2 years old. Size was 700 x 40 pumped to 70psi.
#12
Been Around Awhile

Joined: Oct 2004
Posts: 30,648
Likes: 1,972
From: Burlington Iowa
Bikes: Vaterland and Ragazzi
I used to have that problem with patching thorn resistant tubes when I lived in goat head country (Oregon), until I discovered German made thin patches with the tapered edges ( I think Tip Top or Rema brands). Never had any more patching problems with thick tubes afterwards.
#13
Trans-Urban Velocommando
Joined: Nov 2006
Posts: 2,400
Likes: 0
From: Lenexa, KS
Bikes: 06 Trek 1200 - 98 DB Outlook - 99 DB Sorrento
https://bp3.blogger.com/_P7uBKyp9qxI/...06-18-lock.jpg

I did the same thing to another MTB inner tube that had a pinch flat I hadn't repaired yet, for my sis-in-law's chain when I gave her the bike. I could have patched it, but I decided to cannibalize 4 feet of it for a chain sleeve, then use the rest for rubber bands.
#14
Raving looney
Joined: Jul 2006
Posts: 2,482
Likes: 0
From: Toronto, ON, Canada
Bikes: 70s Leader Precision w/Shimano 600 (road), IRO Rob Roy (Fixed)
Other than a hole I spontaneously got near the valve stem (this happened 30 minutes AFTER arriving at work, too... must've finally just given way) - I've always patched.. But for times on the road, I carry a spare to swap out straight away and patch at my destination/home that night as others have mentioned.
For patching, I use a couple of different kits I got from the LBS, nothing fancy. I scrub with sandpaper (after using a Sharpie to correctly identify the problem area if it's not obvious), apply glue, let it go off, put the patch on and then put my u-lock on the patch end-on to apply some heavy-ish pressure on the patch and leave it overnight typically. I have a good 8 spares for my roadie and a couple of 26" spares. With tubes being around $2 at MEC, I pick up a couple if I go there to buy anything usually, mainly because I like to have the compact/rolled up tubes convenience to carry as spares (I can never seem to roll them up quite how they come in the box).
I carry a presta/schrader adaptor in case I can use a gas station pump to fill up, otherwise I'll hand-crank it on my frame pump to about ~70PSI which is LOW, but enough to get me home/to a subway station (as I carry spare fare in my kit in case "it" happens). I've had to change a pinch flat at 3:30am this summer... so I know my ideas work in practicality.
ax0n reminded me of a tube I blew up and it got caught in the rim/tyre pinch and blew itself apart two minutes after inflation (poor fitting/check on my part
) - I keep that tube around for patch material - but chain cover is a great idea - thanks!
For patching, I use a couple of different kits I got from the LBS, nothing fancy. I scrub with sandpaper (after using a Sharpie to correctly identify the problem area if it's not obvious), apply glue, let it go off, put the patch on and then put my u-lock on the patch end-on to apply some heavy-ish pressure on the patch and leave it overnight typically. I have a good 8 spares for my roadie and a couple of 26" spares. With tubes being around $2 at MEC, I pick up a couple if I go there to buy anything usually, mainly because I like to have the compact/rolled up tubes convenience to carry as spares (I can never seem to roll them up quite how they come in the box).
I carry a presta/schrader adaptor in case I can use a gas station pump to fill up, otherwise I'll hand-crank it on my frame pump to about ~70PSI which is LOW, but enough to get me home/to a subway station (as I carry spare fare in my kit in case "it" happens). I've had to change a pinch flat at 3:30am this summer... so I know my ideas work in practicality.
ax0n reminded me of a tube I blew up and it got caught in the rim/tyre pinch and blew itself apart two minutes after inflation (poor fitting/check on my part
) - I keep that tube around for patch material - but chain cover is a great idea - thanks!
Last edited by Flimflam; 11-13-07 at 09:42 AM.
#16
Cycle Dallas
Joined: Jun 2005
Posts: 3,776
Likes: 11
From: Land of Gar, TX
Bikes: Dulcinea--2017 Kona Rove & a few others
I also change to a spare, while out on the road and then patch the damaged tube when I get home.
Trying to patch "in the field" almost always fails for me, but doing it with the right tools has been very successful.
I use Park Tool Super Patches. They are pre-glued and will flex and stretch with the tube.
1. Use a small amount of soap and water to clean the area to be patched, (this is to help reduce the release compound used during manufacturing). Since I don't always know where the hole is, I just do this while I am looking for the leak in the kitchen sink. Allow the tube to dry thoroughly.
2. Scuff the tube around the puncher. Sand paper seems to work better than the dimpled tin piece that comes with some patch kits.
3. Apply the patch at a 45° angle to the rotation of the tire. This gives the adhesive more surface area in the direction that will get the most stretching.
4. Use a C-clamp with a piece of old inner tube around the one being repaired to keep pressure on the patch as the glue cures. Another option is to put a stack of books on the inner tube. I usually leave it this way at least overnight; 24 hours, if I have time.
Happy patching!
Trying to patch "in the field" almost always fails for me, but doing it with the right tools has been very successful.
I use Park Tool Super Patches. They are pre-glued and will flex and stretch with the tube.
1. Use a small amount of soap and water to clean the area to be patched, (this is to help reduce the release compound used during manufacturing). Since I don't always know where the hole is, I just do this while I am looking for the leak in the kitchen sink. Allow the tube to dry thoroughly.
2. Scuff the tube around the puncher. Sand paper seems to work better than the dimpled tin piece that comes with some patch kits.
3. Apply the patch at a 45° angle to the rotation of the tire. This gives the adhesive more surface area in the direction that will get the most stretching.
4. Use a C-clamp with a piece of old inner tube around the one being repaired to keep pressure on the patch as the glue cures. Another option is to put a stack of books on the inner tube. I usually leave it this way at least overnight; 24 hours, if I have time.
Happy patching!
#17
Member
Joined: Oct 2006
Posts: 42
Likes: 0
Carry a spare tube and patch kit. Although it is unusual, you can get more than one flat during a commute. When the first flat happens, install the spare tube. If you get another, patch one of the tubes during your ride. I would recommend that once you get home, patch the one with the puncture and put that one back on the bike. This way you have a "tested" spare, and are riding a patched one.
For patching tubes I use the cheapo $1 walmart patches. I think they are Bell brand. It comes in squares that can be cut to size. Cut a round patch out of that material. It does not need to be very large. Then scuff an area larger than the patch. Add the glue to the tube in a thin layer and allow to dry. If possible, inflate the tube somewhat and press the patch on hard. This way, when you fully inflate the tube, it will not stretch the patch as much. After that, rub some dirt from the garage floor on it. This will keep if from sticking to the inside of the tire. I have had the best results by putting the tube right back in the tire and inflating. The pressure will help the patch cure.
For patching tubes I use the cheapo $1 walmart patches. I think they are Bell brand. It comes in squares that can be cut to size. Cut a round patch out of that material. It does not need to be very large. Then scuff an area larger than the patch. Add the glue to the tube in a thin layer and allow to dry. If possible, inflate the tube somewhat and press the patch on hard. This way, when you fully inflate the tube, it will not stretch the patch as much. After that, rub some dirt from the garage floor on it. This will keep if from sticking to the inside of the tire. I have had the best results by putting the tube right back in the tire and inflating. The pressure will help the patch cure.
#18
Trans-Urban Velocommando
Joined: Nov 2006
Posts: 2,400
Likes: 0
From: Lenexa, KS
Bikes: 06 Trek 1200 - 98 DB Outlook - 99 DB Sorrento
Yeah, that lock and chain is the heavy-ass one I leave at work, locked to the bicycle rack. I left my usual cable lock at home one day, and that was my improvised solution. That day, I just locked up with the bare chain. The next day, I brought the old inner tube in to cover it. Now it pretty much resides permanently at work, but I've gotten some fun comments from co-workers about the tube. They think it's funny that it's got patches all over it. Hey, when a valve stem goes, it's curtains.
#19
Señior Member
Joined: Sep 2005
Posts: 13,748
Likes: 10
From: Michigan
Bikes: Windsor Fens, Giant Seek 0 (2014, Alfine 8 + discs)
Replace on the road, patch when you get home.
There is no substitute for a proper vulcanizing patch and glue. If you do it correctly, the patch will be fused (welded, really) to the tube; you will NOT be able to separate it without tearing the tube; the patch becomes part of the tube.
I've had ROTTEN luck with pre-glued patches. They're OK in an emergency, they'll probably get you home, but take them off, clean with a solvent, and then put a REAL patch on when you get home.
Honestly, I flat about once every two years so it would cost me about $2.50 a year to just toss my old tubes when they puncture, but that would be wasteful.
There is no substitute for a proper vulcanizing patch and glue. If you do it correctly, the patch will be fused (welded, really) to the tube; you will NOT be able to separate it without tearing the tube; the patch becomes part of the tube.
I've had ROTTEN luck with pre-glued patches. They're OK in an emergency, they'll probably get you home, but take them off, clean with a solvent, and then put a REAL patch on when you get home.
Honestly, I flat about once every two years so it would cost me about $2.50 a year to just toss my old tubes when they puncture, but that would be wasteful.
__________________
Work: the 8 hours that separates bike rides.
Work: the 8 hours that separates bike rides.
#20
I usually replace them. It doesn't happen very often, so the extra expense isn't a big deal.
There have been times where I had repeat flat incidents on the same bike within a short period of time. Once it was because of a defective new tire with a wire sliver protruding from the tire casing. Once it was due to worn out rim tape. When I have 3 flat tubes lying around, I buy a patch kit and take care of them.
There have been times where I had repeat flat incidents on the same bike within a short period of time. Once it was because of a defective new tire with a wire sliver protruding from the tire casing. Once it was due to worn out rim tape. When I have 3 flat tubes lying around, I buy a patch kit and take care of them.
#21
Senior Member

Joined: Apr 2005
Posts: 465
Likes: 4
From: København
Bikes: Kinesisbikes UK Racelight Tk
Patching tubes has yielded mixed results for me in the past. Maybe I'm using a bad patch kit or I just suck at it.
Do most commuters successfully patch their tubes or do they just toss them and use another one after a flat? I hate to throw something away needlessly but I don't want to have to deal with a leaking patch either.
Do most commuters successfully patch their tubes or do they just toss them and use another one after a flat? I hate to throw something away needlessly but I don't want to have to deal with a leaking patch either.
My experience is that at properly patched tube is just as good as a new tube.
I think the secret to proper patching is to follow the instructions, especially about letting the cement cure for about 4-5 minutes before applying the patch. I prefer Rema TipTop sport patches, but there are probably lots of good brands out there. Some people have luck with the glueless patches, but I have tried both Park Tool and BBB glueless patches without much success.
--
Regards
#22
Trans-Urban Velocommando
Joined: Nov 2006
Posts: 2,400
Likes: 0
From: Lenexa, KS
Bikes: 06 Trek 1200 - 98 DB Outlook - 99 DB Sorrento
Replace on the road, patch when you get home.
There is no substitute for a proper vulcanizing patch and glue. If you do it correctly, the patch will be fused (welded, really) to the tube; you will NOT be able to separate it without tearing the tube; the patch becomes part of the tube.
I've had ROTTEN luck with pre-glued patches. They're OK in an emergency, they'll probably get you home, but take them off, clean with a solvent, and then put a REAL patch on when you get home.
Honestly, I flat about once every two years so it would cost me about $2.50 a year to just toss my old tubes when they puncture, but that would be wasteful.
There is no substitute for a proper vulcanizing patch and glue. If you do it correctly, the patch will be fused (welded, really) to the tube; you will NOT be able to separate it without tearing the tube; the patch becomes part of the tube.
I've had ROTTEN luck with pre-glued patches. They're OK in an emergency, they'll probably get you home, but take them off, clean with a solvent, and then put a REAL patch on when you get home.
Honestly, I flat about once every two years so it would cost me about $2.50 a year to just toss my old tubes when they puncture, but that would be wasteful.
#23
multimodal commuter
Joined: Nov 2006
Posts: 19,810
Likes: 597
From: NJ, NYC, LI
Bikes: 1940s Fothergill, 1959 Allegro Special, 1963? Claud Butler Olympic Sprint, Lambert 'Clubman', 1974 Fuji "the Ace", 1976 Holdsworth 650b conversion rando bike, 1983 Trek 720 tourer, 1984 Counterpoint Opus II, 1993 Basso Gap, 2010 Downtube 8h, and...
I gave my wife a 1966 Raleigh RSW-16 for Christmas last year. It still had the original white Dunlop tires on it, which looked too tired to use safely, and apparently the original Dunlop innertubes as well. I put on new tires, but figured I'd change the tubes only if they don't hold air. So far so good!
But I must say, I used to have much better luck patching tubes. Back in the 70's and early 80's I had virtually 100% success rate; recently it's dropped to maybe 75% at best. Which I don't understand, since I use the same patch kit (Rema/Tip-top), have more patience, and more experience. Maybe everything was just better in the old days. Or maybe my standards were lower?
But I must say, I used to have much better luck patching tubes. Back in the 70's and early 80's I had virtually 100% success rate; recently it's dropped to maybe 75% at best. Which I don't understand, since I use the same patch kit (Rema/Tip-top), have more patience, and more experience. Maybe everything was just better in the old days. Or maybe my standards were lower?
#24
Bubba Ho-Tep's BFF
Joined: Feb 2006
Posts: 354
Likes: 0
From: Escaped NYC
Bikes: Brompton & a Bianchi Volpe do-it-all-bike
Patch. Half the time I don't even take the wheel off the bike.
Examine outside of tire, feel inside of tire and rim, inflate tube and locate hole, then patch.
I've got a spare tube as well but I can often just patch the tube faster than replacing it.
Examine outside of tire, feel inside of tire and rim, inflate tube and locate hole, then patch.
I've got a spare tube as well but I can often just patch the tube faster than replacing it.
#25
Senior Member
Joined: Oct 2007
Posts: 575
Likes: 0
From: North Carolina
But I must say, I used to have much better luck patching tubes. Back in the 70's and early 80's I had virtually 100% success rate; recently it's dropped to maybe 75% at best. Which I don't understand, since I use the same patch kit (Rema/Tip-top), have more patience, and more experience. Maybe everything was just better in the old days. Or maybe my standards were lower?






