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new tyres old rims

Old 12-18-11, 05:39 AM
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micmat
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new tyres old rims

Restoring an old Centurion--has 700c Araya rims--widish with a deep narrrow valley where the rim tape goes
Cannot get a 23 tyre to run "round"--seems to be a high spot,--tried several tyres and they all fit modern rims fine,so that is not the problem
The rim tape I used looks too wide and maybe fouling the seating--- can narrow tape be had ?
Or is it just that these are too narrow for this rim
Thanks
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Old 12-18-11, 07:36 AM
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Rim tapes come in widths from about 11 mm to 22 mm.

Are your Araya rims round? That'd be my first check on a truing stand. If so, 'could be that the hook on the rim interior is bent...time of new rim or wheel.
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Old 12-18-11, 08:43 AM
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Velox tape even comes in 9 or 10 mm size, to fit down in the valley, cover spoke heads but not up the sidewall. Sometimes new tires and old rims just don't seem to work together. I had an old set of Rigida rims that I just couldn't get a modern tire to mount on properly.
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Old 12-18-11, 09:28 AM
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Some tire rim combinations are impossible to seat correctly. Continentals on Wolbers for one example. Or, if you're trying to put a folding bead tire on an old flat or bulge bead rim, it may never seat correctly. I have had the bead hang up on cloth rim strips also, and it can drive you to the brink of madness trying to make it work,,,,BD
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Old 12-18-11, 10:07 AM
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Originally Posted by Bikedued View Post
Some tire rim combinations are impossible to seat correctly.
Continentals on Wolbers for one example. Or, if you're trying to put a folding bead tire on
an old flat or bulge bead rim, it may never seat correctly. I have had the bead hang up
on cloth rim strips also, and it can drive you to the brink of madness trying to make it work,,,,BD
+1.........Some tire and rim combinations exist only as
proof of the forces of darkness in this world.
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Old 12-18-11, 10:20 AM
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Have you tried "working" the tire with some air in it.........say about 20-30 lbs of and then pull the tire side to side in the area where it is not seating. I have gotten this to work several times, although not everytime.
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Old 12-18-11, 10:21 AM
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+1 Get some narrow rim tape.

+1 While inflating your tires, watch the bead area closely, to make sure it is seating evenly.
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Old 12-18-11, 10:46 AM
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I had this issue with some (cheaper) Kenda tires I was installing on a bike for the local co-op, and a very light coat of dish soap applied with the swipe of a finger along the bead, combined with careful inflation solved the problem for me. YMMV.
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Old 12-20-11, 04:01 AM
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micmat
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Tx Guys---10mm rim tape did the trick !
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