How to determine if a rim is tubeless compatible?

[spoonrobot]

ISO 5775 would have measurements you could reference, unfortunately it is not a free document, nor are holders free to share information from it.

The only actual measurement I was able to find online was for the BSD of 621.95 +- 0.5mm. Which is not helpful

It also appears a G Height measurements based on inner rim would could be a factor used to rule out tubless compatibility

Rim Width 19-21mm G-Height 6.0mm +/- 0.5mm
Rim Width 22-29mm G-Height 6.5mm +/- 0.5mm



That rim does not look like a rim designed for tubeless use, to my eyes

But if it's a rear rim, I'd YOLO

[crownjewelwl]

Back in the day I set up ksyriums tubeless with the first Hutchinson tires. You don’t need a bead hook just some tape. All the new carbon rims are hookless.

[AngryScientist]

Thanks guys, just went and measured, these are 23mm external. I believe the R460 is a good guess. I'll tape them up, pump them up and see how they perform.

I really love the ride of Veloflex tires, but I've recently had a string of flats generally related to tiny sharp flint type stones that puncture the tube that surely would be sealed in a tubeless scenario, so i'm hoping to be on veloflex tubeless tires soon. just waiting on some parts.

[Nooch]

Originally Posted by AngryScientist

Here are the rims in question

I'm looking at the wall at a velocity a23 and a dt r460 next to each other, and honestly i can't tell the difference.. so maybe an a23, which had both varieties if i'm remembering correctly...

[unterhausen]

you don't lose anything by using tubeless tape even if you end up going to tubes. I'm slowly getting rid of the cloth stuff, it just doesn't work as well.

[slambers3]

My bet ia 460 as well. I’ve built a handful of those, and owned a few others I didn’t build. 460/350 hub is a common combination and came oem on a lot of specialized bikes a few years back.

[unterhausen]

I thought DT anodizes the whole rim and then machines the sidewall.

[oldpotatoe]

Originally Posted by unterhausen

I thought DT anodizes the whole rim and then machines the sidewall.

Good call. The ones I have built were black all over, no silver except for brake track.

[MikeD]

Originally Posted by unterhausen

I thought DT anodizes the whole rim and then machines the sidewall.

Does post #11 show something different?

[unterhausen]

Originally Posted by MikeD

Does post #11 show something different?

Yes, it's a black rim and the inside is not black. I don't have a huge amount of experience with dt rims, but all the black ones I have seen have been black on the inside.

[jtbadge]

I guess everyone sees something different in that picture but the inside looks black to me.

[AngryScientist]

maybe because the sun is bouncing off in that pic, but the inside is definitely black

[Mark McM]

Originally Posted by jtbadge

I guess everyone sees something different in that picture but the inside looks black to me.

It seems this rim is just like the dress, which might have been black and blue, or white and gold.

[zennmotion]

I'm going to muddy the waters and say that I'm pretty sure those are the older Pacenti 23 rims. They look identical to mine. Not sure about tubeless compatibility, mine are tubed.

[oldpotatoe]

Originally Posted by zennmotion

I'm going to muddy the waters and say that I'm pretty sure those are the older Pacenti 23 rims. They look identical to mine. Not sure about tubeless compatibility, mine are tubed.

Those aren't Pacenti because none of the nipples are pulling through the rims.