Can You Repair Tire Sidewall
Can yous repair the sidewall of a tire?
07-31-09, 07:34 AM
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Can you lot repair the sidewall of a tire?
Hi,
I have a cyclocross tire with perfectly skillful tread that has a one/16" hole in the sidewall. That is simply big plenty for the tube to bulge out under pressure. Information technology is a folding bead tire and the sidewalls don't announced to be reinforced in any particular manner.
Is there a way to repair the sidewall? I utilise this tire on my city bike so information technology doesn't have to be perfect or pretty.
many thanks,
mb
07-31-09, 07:44 AM
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Just reminded me of the onetime Dunlop puncture repair outfits you could purchase in the 1950s. You lot got a yellow rectangular tin, in which were an assortment of patches of different sizes, a tube of condom solution, a small block of French chalk and a grater to grate information technology with, a yellowish crayon to mark the location of the puncture, some spare lengths of rubber tubing for the Woods valve, and a slice of thin canvass for repairing holes such equally the 1 you have in the sidewall. And then I'd say yes, there should be no problem if yous tin detect a suitably strong and thin material and an advisable adhesive to stick it to the inside of the cover, whatever that's made of. An touch agglutinative probably would work best, where you'd permit both parts dry to the affect, then press them together. Leave it 24 hours before refitting to gain total strength, and dust the repair with talcum powder (or French chalk).
07-31-09, 07:45 AM
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At that place's been some threads on this previously. Many people said they patch the within of the tire using the older style patches with gum. You need to really rough upwardly the surface first to be sure the mucilage sticks.
I personally wouldn't carp. Yous tin get new tires cheap past searching. Probikekit has Vittoria'southward for $35 and I call back there's some other ten% off that with complimentary shipping.
07-31-09, 07:50 AM
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This is true, but information technology illustrates perfectly the departure between America in the 21st century and England in the immediate post-state of war years. In those days, not only did people have to make everything terminal every bit long every bit possible, only you couldn't always become new tyres. My male parent came from Ireland to work in England during the war, and he used to have a lucrative sideline smuggling tyres and inner tubes nether his trench glaze whenever he went back and along. He looked nigh 30 stone, and he was really very thin.
07-31-09, 08:55 AM
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Regular tube patches volition piece of work if the pigsty is small plenty. You tin also "boot" the tire with heavy nylon pack cloth within the hole equally a reinforcement.
07-31-09, 09:thirty AM
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Agree with above.
It is patchable. If a regular patch would accept upward too much room you lot tin can employ role of a plastic drink bottle cut to fit. Get the edges as rounded and shine as possible to keep it from slicing the tube. Alternatively, you could use tyvek (fedex envelopes, house wrap, etc.). It might wear afterwards a little but it is easy plenty to redo. Make sure the hole does non get a conduit for grit and such to become inside your tire.
I wouldn't race the tire but I would certainly ride it and bank check information technology earlier every ride. Y'all should check your tires anyhow but go along a closer eye on that particular spot.
Saying tires a cheap enough is truthful but it seems a waste to throw away a tire that could be made serviceable. Ya, all the arguments nearly safety etc. Only know that you probably accept increased hazard of a front tire blowout. How big or pocket-size of an increase is anyone's guess.
07-31-09, 10:31 AM
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In my younger days when i couldn't beget tires, I used to patch things like this past:
Cutting a piece of denim. Spreading one side of it with condom cement (from a patch kit). Let it get tacky. Then crude-upwards the tire. Spread a coat of rubber cement on the tire. Let it get tacky. Utilize the denim like you would a patch. They would hold for a long fourth dimension.
07-31-09, 10:36 AM
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Two or three layers of duct tape has always worked for me. I keep a couple wraps of information technology around my frame pumps for side-of-the-road repairs.
07-31-09, 10:37 AM
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I acquit some pieces of FedEx envelope in my patch kit. Saved a few rides that style over the years. Tyvek is amazing stuff.
07-31-09, 11:31 AM
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Tyvek is a not bad idea. I've used dollar bills on many occasions (the Linen content makes them quite strong). I'g non sure near other currencies.
07-31-09, 12:12 PM
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1/16" tear isn't bad, though if it bulges I bet there are broken threads to either side of the pigsty so the tear is probably closer to 3/xvi". I proceed an old expired (thorn proof, i.eastward. thick) inner tube to cutting sidewall liners from.
At some bespeak, though, a sidewall tear is as well long to patch safely. Depending on orientation (and working force per unit area) over 5/xvi" it becomes iffy.
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07-31-09, 12:53 PM
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Originally Posted by Proofide 
He looked near 30 rock, and he was actually very thin.
Wow! That'southward well-nigh 420 lbs. He must take looked like the Michelin Man.
07-31-09, 12:55 PM
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The trick with repairing sidewalls is that you must transfer the loads across the broken fibres. Or else when you pump information technology up, yous'll observe there'll be some twisting of the casing and a burl. To transfer the load from one broken end of the casing-fibre to the other side, I observe bridging it an equally strong cloth works well. And y'all MUST attach the material to the broken fibres in society to transfer the loads across.
Cutting up Tyvek race-numbers and gluing them in with 3M Fastak works well and won't event in decreasing the ID of the tyre, making mounting easy without having to fumble and concur boots in identify. Scuff upwardly the inner surface of the tyre with sandpaper and the Tyvek patches. Follow the instructions on the Fastak tube. I've managed to repair sidewall cuts as large as ane/2" this way with no bulges and twisting of the casing.
07-31-09, 01:01 PM
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I just use denim patch and gorilla glue (very elastic foam glue)
basically it has to exist a woven patch and glue that allows deformation.
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07-31-09, 01:32 PM
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Thanks very much for all the suggestions. A replacement tire is pretty inexpensive but I hate to throw away something that is 99% expert; increased danger of a blow-out noted. Sounds like Tyvek plus Fastak are a good solution. All the other artistic ideas like using a dollar bill wll no doubt come handy when i am someday far from abode and have no other options.
Cheers for sharing your noesis everyone!
07-31-09, 03:19 PM
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BTW - You want to have multiple layers of Tyvek depending upon the size of the cut:
one/8" = ane layer
1/4" = 2 layers
1/ii" = 3 layers
Built information technology upward similar a pyramid with largest to smallest. Then a i/2" cutting would accept a 1" Tyvek patch 1st, then 0.ix", so 0.viii". The Fastak ensures that the Tyvek patch doesn't move and that loads are transferred between the casing's cut fibre ends. I've gotten thousands of actress useful miles from a tyre that many would've tossed.
07-31-09, 08:34 PM
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I have a small pack of purpose made "tire boots" They are substantially big ( 2"x3") cocky adhesive patches that are flexible, only have little stretch. they seem to have some reinforcing grids in them. oasis't used them, just they wait like they would do the job.
https://www.mec.ca/Products/product_d...=1249094048165
07-31-09, 10:07 PM
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Haven't seen those before only the Park ones piece of work, also potato chip bags or free energy bar wrappers, and I don't experience that glue is necessary because at 120 psi it ain't goin nowhere. lxxx-90 would probably hold it too. Had this happen to a new Gatorskin. Hundreds of miles (Perchance thousand+) at present with that little bulge on my tire.
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