Author Topic: 38mm internal width, 65mm deep gravel rims from CarbonBeam  (Read 969 times)

Grailer

38mm internal width, 65mm deep gravel rims from CarbonBeam
« on: August 21, 2026, 04:15:58 PM »
Has anyone seen these rims yet? I didn't think the industry had gotten up to 38mm internal width yet for the aero gravel segment. I can't imagine you'd want to run anything less than 55-60mm tires on these, and there still aren't a ton of frames that can clear that with a good safety margin for muddy conditions.

https://www.carbonbeamwheels.com/collections/gravel-pro-38-wide-44mminner-38mm-depth-45-50-55-60-65mm-carbon-t1000-tubeless-700c-road-wheel

Also available on AliEx if you search for "Gravel Pro Wide Inner 35mm 38mm Carbonbeam".

Grailer

Re: 38mm internal width, 65mm deep gravel rims from CarbonBeam
« Reply #1 on: August 21, 2026, 04:18:10 PM »
Things must be moving quickly. I just saw a great list of rims posted by forum member ckchriskohl, here:
https://chinertown.com/index.php/topic,7467.msg116530.html#msg116530

Looks like there are a few factories making rims this wide now.

Hazardman_69

Re: 38mm internal width, 65mm deep gravel rims from CarbonBeam
« Reply #2 on: August 21, 2026, 05:41:36 PM »
Personally I wish manufacturers would focus less on massive internals and more on increasing the external width and the thickness of the rim lip. Something like the new newmen streem g.62 or duke sierra aera w48 that have thick lips which would surely handle rim impacts better. I'm not sure on the impact of wider lips on pinch flats but maybe it will also help there? Just my 2 cents.

LittleBobcat

Re: 38mm internal width, 65mm deep gravel rims from CarbonBeam
« Reply #3 on: August 26, 2026, 01:12:47 AM »
Personally I wish manufacturers would focus less on massive internals and more on increasing the external width and the thickness of the rim lip. Something like the new newmen streem g.62 or duke sierra aera w48 that have thick lips which would surely handle rim impacts better. I'm not sure on the impact of wider lips on pinch flats but maybe it will also help there? Just my 2 cents.

Wider lips do help on preventing pinch flats, more or less confirmed during development of rim profiles I designed. The main conflict is, thick side lips result in heavier rims which is okay for full wheelset products from bespoke brands but do affect figures of the rims when being sold alone, and not every supplier in xiamen provide the capability of manufacturing rims with lightweight fillings in sidewall.

I know this might sound like self‑promotion, but feel free to check out the NOSIG gravel wheelsets I designed if you’re interested. ps thick side lips helps a lot on aerodynamics also, at least in cfd i ran

frewster

Re: 38mm internal width, 65mm deep gravel rims from CarbonBeam
« Reply #4 on: August 26, 2026, 09:17:03 AM »
I tried looking up pricing on NOSIG the last time you mentioned it but cannot find anywhere selling the wheels. The NOSIG website lists an absurd price of $9999. They're interesting, but they seem impossible to buy.

LittleBobcat

Re: 38mm internal width, 65mm deep gravel rims from CarbonBeam
« Reply #5 on: August 26, 2026, 12:20:13 PM »
I tried looking up pricing on NOSIG the last time you mentioned it but cannot find anywhere selling the wheels. The NOSIG website lists an absurd price of $9999. They're interesting, but they seem impossible to buy.
Maybe try straight contacting them on ig(name nosig_official )? the website is still under development afaik, sorry for that……