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Another spoke broke

Old 09-27-22, 09:19 PM
  #51  
79pmooney
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Check to make sure the bead line (the molding line on the tire sidewall you can just see over the rim) is running parallel to the rim throughout the wheel's circle. If it isn't. deflate, work the sidewalls with your hands, inflate partially, check and inflate from there if the line is now parallel. Hitting the brake is not OK. The tire will stretch with time and the contact will only get worse, wearing both the tire and the brake.

I think wider rim means more tire height so you may need to go down a size or swap to a brand/model that is slightly smaller.
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Old 09-27-22, 09:49 PM
  #52  
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Originally Posted by 79pmooney View Post
Check to make sure the bead line (the molding line on the tire sidewall you can just see over the rim) is running parallel to the rim throughout the wheel's circle. If it isn't. deflate, work the sidewalls with your hands, inflate partially, check and inflate from there if the line is now parallel. Hitting the brake is not OK. The tire will stretch with time and the contact will only get worse, wearing both the tire and the brake.

I think wider rim means more tire height so you may need to go down a size or swap to a brand/model that is slightly smaller.
i would have thought wider tires meant less height.
I will deflate like you said. The tire isn’t exactly hitting but it is touching/slightly rubbing.
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Old 09-27-22, 09:58 PM
  #53  
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Originally Posted by pepperbelly View Post
.....


There is one spot on the tire about an inch long that lightly touches one of the brake arms. It’s almost like the tire has a high spot.
Tires have a molded "reference line", which sits a millimeter or two above the rim.

Spin the wheel slowly, watching the line. If it moves away from the rim in one section, the tire isn't seated properly.

If so, let air out IMMEDIATELY to prevent a possible blowout.
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Old 09-27-22, 10:23 PM
  #54  
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Originally Posted by pepperbelly View Post
i would have thought wider tires meant less height....
So, how did you do in Geometry?

Tires inflate round. The circumference comprises both the tire itself and the rim.

A wider rim means a larger circumference, and therefore a larger radius. So your tire is both wider and taller.
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Old 09-28-22, 02:14 AM
  #55  
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While it’s not common in most circles, it depends. Until the tire is leaving tangent to the rim increased width means wider. After that it means narrower. Yes, with hooked rims the tire does stay on. Not common on typical bicycles, but occasionally seen on fat tire bikes. Also used to be common on supermileage/eco marathon vehicles which used 20” rims.
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Old 09-28-22, 12:32 PM
  #56  
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Originally Posted by pepperbelly View Post
It will be a Shimano 105 hub and a Sun RhynoLite rim plus whatever spokes he thinks is best for me.
I have a gravel wheelset in that combination, with straight-gauge DT spokes. It won't win any weight contests, but it's been problem-free for years.
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Old 10-03-22, 04:06 PM
  #57  
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I took the bike to the bike shop. He said it was a weird problem and suggested the tire might be bad. He replaced both tires and no rubbing now.
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Old 10-04-22, 11:10 AM
  #58  
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I finally had a chance to ride. The new tires are good so far but being narrower than the old tires the ride is a little harsher on some rough asphalt. One stretch of road is almost like chip seal.
On the plus side I got home with the same number of spokes I started with.

Last edited by pepperbelly; 10-04-22 at 05:12 PM.
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