will 1 3/8" tire fit a 1.75" rim
01-21-18, 03:16 PM
#2
Thrifty Bill
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No.
01-21-18, 03:23 PM
#3
Senior Member
Probably not.
https://www.sheldonbrown.com/26.html
The width of the tire isn't the issue. If a wheel has a 1.75" tire installed, and you replace it with a tire of the same diameter whose width is 1.375", it'll usually work fine.
The problem is rim diameter. 26" tires whose width is labelled as decimal are for wheels with a different rim diameter than 26" tires whose width is labelled fractionally. The match between the diameter of the rim and the tire bead must be precise.
https://www.sheldonbrown.com/26.html
The width of the tire isn't the issue. If a wheel has a 1.75" tire installed, and you replace it with a tire of the same diameter whose width is 1.375", it'll usually work fine.
The problem is rim diameter. 26" tires whose width is labelled as decimal are for wheels with a different rim diameter than 26" tires whose width is labelled fractionally. The match between the diameter of the rim and the tire bead must be precise.
01-21-18, 03:45 PM
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26 x 1.75 and 26 x 1 3/8 are two totally different wheel sizes, different wheel diameters. Totally incompatible
01-21-18, 04:36 PM
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What, no link to Sheldon's tire sizing page yet?
Here it is: Tire Sizing Systems
One addition I'll mention is to not confuse what's a label with what's a dimension. Most do this and won't even admit it. Andy
Here it is: Tire Sizing Systems
One addition I'll mention is to not confuse what's a label with what's a dimension. Most do this and won't even admit it. Andy
01-21-18, 06:42 PM
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It's not the width as much as the diameter that determines tire/rim compatibility. Most 26 x 1-3/8" tires have a 590mm bead seat diameter, while most 26 x 1.75" tires have a 559mm bead seat diameter. But ostensible 26" diameter tires and rims are a hot mess, so you need to be careful. The Sheldon Brown pages cited above should help.
