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#1
05-10-2024, 06:29 PM
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Tubular size and rim width
I can’t seem to find a clear answer to this question about sizing and compatibility for tubular. I am interested in mounting 30mm road tires to tubular wheels but I’m unsure about what’s the min width of the rim to be compatible and safe. I don’t see many wide tubular disc rim. I’m eyeballing a 23mm wide tubular wheel set (disc). Is 23mm wide ok? I mean cross folks used 33s on narrower rims in the past, right?
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#2
05-10-2024, 07:18 PM
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I have some 30mm Vittoria tubs glued to an old set of Campag Nucleons (inner width 14.5mm outer width 21mm) and that’s about as wide of a tire that I’d mount on an old, narrow rim, as the base tape is a bit wider than the gluing surface. A 23mm wide rim should be good but perhaps check the tire manufacturer’s website if you feel uncomfortable.
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#3
05-10-2024, 07:35 PM
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Quote:
Back in the days before "gravel" was a thing, we all used to ride cx tires on road rims for gravelling. I would not worry about your combo in the least.
__________________
http://less-than-epic.blogspot.com/
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#4
05-10-2024, 07:40 PM
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Considering for forever 33 CX were put on narrow rims and run @ low pressures, some data to consider.
Too narrow a tire on wider rim i can see as an issue if you flat. Especially carbon rims that might get damaged. imo
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This foot tastes terrible! 
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#5
05-11-2024, 04:30 AM
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Quote:
The R9270 wheels feature a tubular rim with an external width of 28mm, in three different rim heights - 35mm, 50mm and 60mm. https://bike.shimano.com/en-US/produ...-C50-TU-R.html
__________________
"Progress is made by lazy men looking for easier ways to do things." - Robert Heinlein
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