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Picking glass out of tires
 FusilierDan member not displaying online status
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Dahon MU P8
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Rockland Bicycling Club
posted 4/12/2009
at 7:29:46 PM
viewed 4114 times
After my third flat in two weeks I'm taking a hard look at my tires. Should I be picking the glass out of my tires? most haven't gone through the bead. Is there a special technique for this?

 ptsbike member offline
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Tri-Cities Road Club
posted 4/12/2009
at 7:37:44 PM
post #1 viewed 2804 times
If you don't get it out, it most likely will work it's way into the tire. I usually take out the glass, squirt super glue in the hole, deflate the tire and press the sides of the hole together. It usually works fine to seal the hole. That works if the cut is in the tread.

 Thorn member offline
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posted 4/12/2009
at 7:37:56 PM
post #2 viewed 2802 times
yarchive.net/bike/glass_puncture.html

 brucew member not displaying online status
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Trek Portland
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Rochester Bicycling Club
posted 4/12/2009
at 8:13:30 PM
post #3 viewed 2795 times
Once a week or so (emphasis on the or so) I dig out the bits. I just use a teeny-tiny screwdriver to work them out. I don't bother with gluing the larger cuts shut. Nothing bad has happened by skipping it, and it avoids gluing myself to the tire.

 Lancetta member offline
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Giant OCR1
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posted 4/12/2009
at 8:18:48 PM
post #4 viewed 2793 times
Ditto what the others said - and a metal dental pick (and tweezers) works great!

Lancetta

 DAD member offline
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Space City Cycling Club
posted 4/13/2009
at 8:37:10 AM
post #5 viewed 2748 times
I don't worry about it. If it doesn't go flat when you run over it it won't go thru.

 TomEzell member online
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Arkansas Bicycle Club
posted 4/13/2009
at 8:39:10 AM
post #6 viewed 2746 times
Yep... I carry a small pair of needle-nosed pliers in my seat bag for just that sort of thing...

 MTrimmer member online
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Litespeed Vortex
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posted 4/13/2009
at 9:08:34 AM
post #7 viewed 2739 times
In over 25 years riding, I've never done this, and I can count the number of flats I've suffered due to glass in my tires on one hand with several fingers left over. In my experience, if glass (or anything else on road for that matter) doesn't cause a puncture right away, it's probably not going to over time. And if the glass shard it big enough to pierce the tire casing and caused a tube flat, you should probably replace the tire (or at least put a boot in it for safety).

That said, if you enjoy this as a hobby, go right ahead.

 rmillay member offline  
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RBENT
posted 4/13/2009
at 4:41:25 PM
post #8 viewed 2707 times
BTW, you may be able to get a used dental pick from your dentist. Mine used to have a drawer full, and he let me pick out a couple which I ground into a useful shape for me. Typically, glass is not much of a problem unless it is wet, or gets oily. Running over the bottom of a beer bottle would, of course, not be advisable, but the tiny shards are not likely to puncture a good tire unless they are lubricated. Picking out the little bits is probably more of an OC sort of thing.

 raleighdon member not displaying online status  
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Davidson Custom (Katrina)
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posted 4/13/2009
at 5:27:59 PM
post #9 viewed 2702 times
I have found the best technique for this is the MimiTabbyMethod.

1) Carefully remove both front and rear wheels from the bike;
2) Remove tires from the rims;
3) Take a shower with the tires, washing them very carefully;
4) Dry the tires (using an old towel, not one of Mimi's pretty ones);
5) Hand the tires to Mimi;
6) Go cook dinner;
7) After dinner, put the tires back on the wheels;
8) Put the wheels back on the bike

In fact, I was thinking of doing this tonight. I've done this a few times now, and with 4,420 miles on them (scheduled to replace at 4,500, but if I can get to 5K, I'd really like it) and having just done both a 200k and 300k in the last few weeks and riding to work every day, I think it's time again.

What Mimi does is a mystery. I look in her office and she's bent over the tires with a needle, reading glasses, bright white lamp and softly humming to herself. Believe me, cooking dinner is well worth it.

 siouxgeonz member offline
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posted 4/13/2009
at 6:12:13 PM
post #10 viewed 2696 times
Are you sure it hasn't gone through?

Flats are usually caused by something, though if you're Howard that's cause enough.

A bright light is a wonderful thing. I had a flat Friday and found the offending teeny tiny prick in five seconds and picked it out. I also found the teeny tiny slow leak hole on the first attempt in the bucket o' water. AND the patch worked the first time. Okay, I *did* have to reseat the tire and it's a little eggy still, but all in all, a good flat fixing experience!
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