I have a set of thru axle wheels that are 142mm x 12mm (100x12 front) and I'm trying to determine if the freehub body is a 10 or 11 speed. The freehub body width measures 36.5mm to 36.71mm along the splines (from the shoulder) to the end (where the lock ring goes) depending on which spline I measure. They were originally on some kind of Specialized Hybrid.

The hub is marked "Road 18T" inside a circle with three pawls on it. Next to that is "HFH-0013". Below that is "0050045". I've done some googling and it could go either way by the measurement of the FHB "kinda" says 11 speed. I'm building up a gravel bike and am stuck between a 10 speed or 11 speed GRX set up.

Any info is appreciated.

And the model# of the hub is?
Google that and it'll probably tell you. Else provide a bit more precise info.

I have no idea what the hub is, that's why I'm here. There are no markings on the hub but for what I typed and is pictured. What Googling I did do says 9/10 and other sources say 11. I think I may have it sorted though. I measured a known 11 speed Shimano FH body and came up with the same measurements using the same methods so I'm moving forward with 11 speed components (when and if I can find them)..

https://bikerumor.com/11-speed-road-...ech-breakdown/

By your measurements, you have a 11 speed freehub (which, of course, will also take 10 speed and smaller cassettes with an added spacer.

What is the largest soprocket size you're using? At above 34T, I think, the 11s cassettes will fit on 10s freehub bodies.

I'm looking to go 11-34 I appreciate the info, thanks. Now to find parts to finish the build

Hi. Maybe this comes late but you have an 11 speed hub. The same came on my Spesh Diverge which ran 1x11 as standard.