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Tire - Wheel Size Question

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Tire - Wheel Size Question

Old 05-07-19, 09:40 PM
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TigerM
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Tire - Wheel Size Question

Hello,

I am looking at changing my bike tires to tubeless. I currently have wheels with 622x20 and tubular tires at 700x26c (26-622). I have confirmed that the wheels are tubeless ready. I am planning on getting the Continental GP5000 TL 25-622 (700x25c). Now I am a bit confused if it will actually fit. The wheel size of 622x20 seems a bit odd.

Would appreciate any info on this.

Thanks a lot and safe riding.
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Old 05-08-19, 04:59 AM
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The rim width number is likely the internal width — 20mm — of the rim, which is a bit wider than standard road rims (at least historically speaking). 25mm tires would be a good fit and probably will blow up a bit wider than 25mm on those rims. 25mm tubeless Scwalbe tires blow up to about 28mm on my 21mm rims, for example.
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Old 05-08-19, 07:35 AM
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Am I the only one wondering how he's going to mount tubeless tires on tubular rims??
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Old 05-08-19, 07:42 AM
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Originally Posted by Abe_Froman View Post
Am I the only one wondering how he's going to mount tubeless tires on tubular rims??
Me too. If you have tubular tires you need new wheels to convert to tubeless clinchers
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Old 05-08-19, 08:12 AM
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Since the OP made more than one reference to 622 including the wheel, I doubt he actually has tubular tires and just meant to say he has regular tires with tubes.
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Old 05-08-19, 10:44 AM
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Originally Posted by ThermionicScott View Post
Since the OP made more than one reference to 622 including the wheel, I doubt he actually has tubular tires and just meant to say he has regular tires with tubes.
That 622 measurement also applies to tubular tires
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Old 05-08-19, 10:58 AM
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Originally Posted by alcjphil View Post
That 622 measurement also applies to tubular tires


It doesn't. It refers to a bead seat diameter. Tubular tires have no bead.

They are called 28".
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Old 05-08-19, 11:08 AM
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Originally Posted by woodcraft View Post
It doesn't. It refers to a bead seat diameter. Tubular tires have no bead.

They are called 28".
It does:
https://www.probikekit.ca/bicycle-ty.../10780306.html
Tubular tires are sold as 28", 700c, or using ERTO sizing
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Old 05-08-19, 11:38 AM
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Originally Posted by alcjphil View Post
It does:
https://www.probikekit.ca/bicycle-ty.../10780306.html
Tubular tires are sold as 28", 700c, or using ERTO sizing
That shops will do anything to help clueless shoppers find products doesn't prove much.
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Old 05-08-19, 11:42 AM
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700c, 28in, and 622mm are all the same size. Yes, it's stupidly confusing. (Not to mention that 27' tires are bigger than 28' tires.)
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Old 05-08-19, 12:33 PM
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Welcome to my nightmare.

OP - unless you're gluing the tires to the rim you don't have tubular tires. Your rim is a 700C rim and says it is tubeless compatible.... then put (700c, 622) tubeless tires on it if you want and then ride them. Stop worrying about the widths. Your rim is a road rim. Put road tubeless on them.
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Old 05-08-19, 01:07 PM
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Originally Posted by ThermionicScott View Post
Since the OP made more than one reference to 622 including the wheel, I doubt he actually has tubular tires and just meant to say he has regular tires with tubes.
I too just assumed OP meant tires with tubes.

Last edited by DOS; 05-08-19 at 01:46 PM.
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Old 05-08-19, 01:30 PM
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Originally Posted by DOS View Post
I just assumed OP meant tires with tubes.
Isn't that what I said?
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Old 05-08-19, 01:45 PM
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Originally Posted by ThermionicScott View Post
Isn't that what I said?
Yes, I was just noting that I drew same conclusion.
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Old 05-08-19, 02:00 PM
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Originally Posted by DOS View Post
Yes, I was just noting that I drew same conclusion.
Ahh, gotcha.
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Originally Posted by chandltp View Post
There's no such thing as too far.. just lack of time
Originally Posted by noglider
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Old 05-08-19, 07:25 PM
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Originally Posted by DOS View Post
I too just assumed OP meant tires with tubes.
That's exactly what I meant. Sorry about the confusion.
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Old 05-08-19, 07:26 PM
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This is still going? Wasn't this a first time thread starter? Is this spam or trolling?
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Old 05-08-19, 07:28 PM
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Thanks all for the input. Appreciate it.

I'll go tubeless with a 700x25c Continental GP5000 TL.


Safe riding everyone! Cheers.
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Old 05-08-19, 11:45 PM
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Originally Posted by alcjphil View Post
It does:
https://www.probikekit.ca/bicycle-ty.../10780306.html
Tubular tires are sold as 28", 700c, or using ERTO sizing

You win- I see Sheldon referring to "700c tubular", so I'll have to get over it, or peeve in silence.
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