Rim width vs tire width (now tubulars!)

[Mark McM]

Originally Posted by saab2000

I wonder when 22-23mm internal rims might make an appearance.

They already have. Since 700c road and 29" MTB rims have the same 622mm bead seat diameter, 622mm rims exist across a wide spectrum of internal and external widths. For example, the Ryde Andra 35 (left) and the Kinlin TL-23 rim (right):

[cachagua]

Incidentally TL-23s are back in stock at BHS and they're a pretty good bargain.

https://www.bikehubstore.com/product-p/tl23.htm

(Correction, they're back in stock if you want 700C-28H or if you want 650B. I guess I bought the last pair of 32s.)

[marciero]

Originally Posted by Mark McM

They already have. Since 700c road and 29" MTB rims have the same 622mm bead seat diameter, 622mm rims exist across a wide spectrum of internal and external widths. For example, the Ryde Andra 35 (left) and the Kinlin TL-23 rim (right):

These widths represent the narrow end of offerings in 29-er land. Race Face Arc are another example, they start a little wider at i24, then have 27, 30, 40, 45.

[cribbit]

Thanks for all the help!

Next question - what about tubulars, instead of clinchers? On a 24mm wide tubular rim what can I expect to max out at?

[Mark McM]

Originally Posted by cribbit

Thanks for all the help!

Next question - what about tubulars, instead of clinchers? On a 24mm wide tubular rim what can I expect to max out at?

Tire/rim compatibility depends somewhat on how well the radius of the rim's tire bed comforms to the tire, but consider this: Cyclocrossers have been using 20mm tubular rims with tubular tires up to 35mm for decades. About the widest road tubular tire you'll find is 30mm. I don't think you'll have a problem fitting the widest available tubular tires on a 24mm rim.

[ergott]

It's confusing to add this content to a thread about clinchers since it's completely different.

The radius of the tire bed is more important than width. You want the tire base tape to conform to the rim bed as much as possible. Total width is not really important if glued properly.