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Bicycle Mechanics Broken bottom bracket? Tacoed wheel? If you're having problems with your bicycle, or just need help fixing a flat, drop in here for the latest on bicycle mechanics & bicycle maintenance.

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Old 06-23-10, 10:02 AM   #1
flattireJason
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To patch a tire?

Is it a good idea to patch a tire? I got a flat yesterday and upon inspection today, I found the tire has a .5cm rip in it. The rip is along the wall headed to the bottom of the tire. Is a tube repair kit fine for this sort of repair?
thanks
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Old 06-23-10, 10:08 AM   #2
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You need a tire boot.
Roy got 9500 miles after this flat at 400 miles on a new tire.

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Old 06-23-10, 10:16 AM   #3
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Quote:
Originally Posted by flattireJason View Post
Is it a good idea to patch a tire? I got a flat yesterday and upon inspection today, I found the tire has a .5cm rip in it. The rip is along the wall headed to the bottom of the tire. Is a tube repair kit fine for this sort of repair?
thanks
Yes, you can use a boot, but I would recommend ONLY as an emergency repair. That tire is toast my friend.

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Blessed Jayus 10Wheels! Never seen something like that in a bike tire before. But if that is how you get your deck screws....ummm....you know you can pick 'em up at the hardware store right?
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Old 06-23-10, 12:48 PM   #4
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I repair tire cuts with 1/32" thick fiber reinforced rubber gasket material. I super-glue it in place and then cover it with a piece of duct tape to keep the stiffened edges from fretting thru the tube. With this repair you should be able to wear out the tread of the tire.
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Old 06-23-10, 04:48 PM   #5
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Sure, it's the only way to fix Road Tubeless. Just don't use self-stick patches.
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Old 06-23-10, 05:24 PM   #6
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Use an automotive tire patch. Cut the patch so as to overlap the damaged area by 3/4". Light buff the back side of the tire with red Scotchbrite. Take care not to damage the fiber. Apply a thin layer of rubber cement and apply the patch. A cut on the sidewall can be repaired using shred-resistant dental floss. Again, apply a patch on the back side of the tire.
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Old 06-23-10, 06:36 PM   #7
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At one time after an explosion (a really old cracked tire) I repaired it so i could get home by sewing it. I knocked at the door of the first house I could find and ask for a needle and some string and a piece of electrical tape for the inside. It held up for 50km (back to home). Now in my emergency kit is found a needle and some heavy duty string (for sewing leather), along with a tire boot.
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Old 06-24-10, 08:49 AM   #8
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Gluing closed the hole and using a boot can work wonders. You can also glue a patch cut from old inner tube inside the hole.
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Old 06-24-10, 09:15 AM   #9
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+1 to Furbali
We used to fix automotive tubeless tires in this manner also. Whatever manner you use to repair the tire has to be non abrasive to the tube AND when you inflate the tire to full pressure (especially high pressure tires <100psi) make sure your repair doesn't cause the tire to appear to rupture or have a "goose egg" on the outside. I normally carry a spare tire on longer tours. (figure 8 and attach to lowriders with cable ties.
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