Another spoke broke
09-27-22 | 09:19 PM
#51
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Joined: Oct 2014
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From: Portland, OR
Bikes: (2) ti TiCycles, 2007 w/ triple and 2011 fixed, 1979 Peter Mooney, ~1983 Trek 420 now fixed and ~1973 Raleigh Carlton Competition gravel grinder
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 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.
09-27-22 | 09:49 PM
#52
Thread Starter
old newbie
Joined: Nov 2009
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From: Fort Worth, Texas
Bikes: Specialized Roubaix
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 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 will deflate like you said. The tire isn’t exactly hitting but it is touching/slightly rubbing.
09-27-22 | 09:58 PM
#53
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From: New Rochelle, NY
Bikes: too many bikes from 1967 10s (5x2)Frejus to a Sumitomo Ti/Chorus aluminum 10s (10x2), plus one non-susp mtn bike I use as my commuter
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.
09-27-22 | 10:23 PM
#54
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Joined: Apr 2009
Posts: 39,897
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From: New Rochelle, NY
Bikes: too many bikes from 1967 10s (5x2)Frejus to a Sumitomo Ti/Chorus aluminum 10s (10x2), plus one non-susp mtn bike I use as my commuter
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.
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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An ounce of diagnosis is worth a pound of cure.
Just because I'm tired of arguing, doesn't mean you're right.
“One accurate measurement is worth a thousand expert opinions” - Adm Grace Murray Hopper - USN
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FB
Chain-L site
An ounce of diagnosis is worth a pound of cure.
Just because I'm tired of arguing, doesn't mean you're right.
“One accurate measurement is worth a thousand expert opinions” - Adm Grace Murray Hopper - USN
WARNING, I'm from New York. Thin skinned people should maintain safe distance.
09-28-22 | 02:14 AM
#55
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Joined: May 2005
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From: SFBay
Bikes: n, I would like n+1
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.
09-28-22 | 12:32 PM
#56
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10-04-22 | 11:10 AM
#58
Thread Starter
old newbie
Joined: Nov 2009
Posts: 1,808
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From: Fort Worth, Texas
Bikes: Specialized Roubaix
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.
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.
