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Registered User
Join Date: Sep 2010
Location: Not Virginia
Posts: 517
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Stupid bike tire question
So my daughter started riding her bike around the neighborhood finally and I thought I'd go with her. I've got a cheap mountainbike and noticed the tires were flat so I filled them and the next day they were flat again, so I filled them again and the same thing happened. They were fine before we moved. What the hell? I can always replace them / take it somewhere but is there some little stupid thing I'm missing?
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1980 911 SC targa 1959 Triumph TR3A - sold Something new is on the truck... |
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03-12-2016, 05:32 PM
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I see you
Join Date: Nov 2002
Location: NJ
Posts: 29,967
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Fill them up and squirt them with soapy water. Look for the tiny bubbles. Don't frget to check the valve as well.
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Si non potes inimicum tuum vincere, habeas eum amicum and ride a big blue trike. "'Bipartisan' usually means that a larger-than-usual deception is being carried out." |
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03-12-2016, 05:38 PM
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Back in the saddle again
Join Date: Oct 2001
Location: Central TX west of Houston
Posts: 56,384
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Get some new tubes, put the tubes in and be done with it.
You could try replacing the valves, but if you put new tubes in toll have new valves too. |
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03-12-2016, 05:43 PM
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UnRegistered User
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And feel the inside surface of the tire to make sure nothing is sticking though into the tube.
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Bill K. "I started out with nothin and I still got most of it left...." 83 911 SC Guards Red (now gone) And I sold a bunch of parts I hadn't installed yet. |
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03-12-2016, 06:03 PM
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Registered User
Join Date: Sep 2010
Location: Not Virginia
Posts: 517
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Ok will do, thanks guys
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03-12-2016, 06:25 PM
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Registered
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When you take the tires and tubes out, Mark or note there relation to each other, and the wheel, then fill the tubes and immerse in water to see where the leak is, that way you can check the area on the tire for glass, metal or spoke/rim issues, otherwise you need to inspect every inch of everything- not a bad idea to do a quick check anyways, but being able to zero in on the spot will be very helpful.
When you put the tire/tube back in, fill the tube slightly- just so it has shape, maybe 5lbs, put one bead of the tire on the rim, stick the valve stem into the hole(make sure stem stays straight,) push the tube into the tire, then starting at the valve, start seating the other bead- DON'T use any tools to seat the tire as you will almost always pinch and puncture the tube, just use your hands, feet and curse words if needed. After it is all back together, squeeze the beads on both sides as you work your way around- one side at a time making sure the tube isn't pinched, then fill up to full pressure- probably 50 to 70 on a mountain bike, check the tire for rating. Last thing, good on you for being active with your kid!
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Rutager West 1977 911S Targa Chocolate Brown |
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03-13-2016, 01:12 AM
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1983 Porsche SC
1977 Porsche 911S Targa
