B-One Titan X and Trampa Urban Tread tires

I would like to use Trampa’s Urban Tread tires on my Titan X (B-ONE TITAN X Carbon Electric Skateboard – Boneeboard) but I don’t know if the X’s hubs are the standard 3.75" size. Here are the measurements:
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Is the 3.75" standard an approximate size or an exact measurement? I’m assuming the first image/measurement is the most important and 90.91mm=3.579in so are these hubs some sort of one off thing?

Thanks in advance!

yeah urban treads will fit. Every esk8 hub is pretty much the same 3.75" with the exception of hoyt hubs and bergs

and evolve i think

They’re close enough, they fit everything (mostly)

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The Evolve tires fit Trampa hubs just fine too, they are close enough to 3.75"

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The two main sizes are 3.75 and 6x2. Afaik they’re not cross compatible but most things in esk8 are 3.75

awesome thanks everyone, ordered a set

There are some hubs which are wider that can result in some fuckery, but they’re more of a niche product and you’re correct that the vast majority is a standard size.