Just to throw a wrench in the works, I have a rhyno lite with a Specialized Nimubs 700x41c, and it measures right around 27 3/8". That’s an inch shorter than Davids, and so maybe it’s still a possibility. Sorry I couldn’t get around to measuring it earlier.
do you think a wheel like this would be a good compainon to a square taper hub
Mine is built with an old Suzue square taper hub. It’s an ideal use for a ST hub if you have one. In fact it’s the reason I built this uni in the first place. I had the hub, and just about everything I needed for a road uni.
Square taper is fine for a road wheel. I built my 700c wheel with a cotterless UDC CroMo hub and a Rhyno Lite rim.
If you are already invested in other ISIS unicycles/parts, it could be worthwhile to get an ISIS hub anyway.
Martin
thank you very much, this tire could fit my frame
I run isis everything so isis may be the way to go 
i dont want to drop 65 on a hub vs free
I guess it depends on what you have on hand and what you would need to buy to complete the build.
So you already have a hub, presumably cranks as well? If so you you’d just need bearing adapter rings for your ISIS frame. That’s a lot cheaper than the cost of getting a new ISIS hub. You could even make your own rings, they are just 1mm thick shims than encircle the bearing. As long as the cranks are a good length for you on that wheel then interchangeability with your other unicycles is moot.
If you need spokes for this build check out Wheel Fanatyk. They sell Wheelsmith stainless spokes super cheap. I found them when I was shopping around for parts for my 700c wheel.
BTW, regarding your earlier question about 26" frames with the Nomad 45c tire; My wheel has a 2.0 Marathon Supreme on it and it also just fits a Nimbus 26" Muni frame, maybe 3mm of crown clearance.
Martin
All i need parts wise is a set of square taper cranks or a ISIS hub i got spokes rim and tire that will work right now
ISIS is the way to go but you probably already know that 
Whilst I’m here I might as well ask if anyone has seen a 48hole 700c rim that you can get in the UK - a google search yeilded no results.
I just built a pair of tandem wheels with Alex G6000 48h rims. They are a road rim, and a bit wider than normal, but close to the dyad with a deeper v section. My first thoughts are that it would be a strong and stiff uni rim. Tandems.co.UK has them on their site. The dyad is made in a 48 h version, but I can’t say where you could find it. I would look at tandem suppliers.
Fwiw I found my rims under the “Leader” brand and got them for $25 all said and done for two rims shipped. You may get lucky looking at shops that cater to the fixie crowd. I know that my rims were being marketed to them.
Next time I’m near a good bike shop I’ll have to have a look out for tandem rims. TBH though, I might just splash out on a 36h hub, some long cranks, an MTX 33 (sun ringle) and build a lighweight 700c muni which will probably be more use to me.
If you have a 48h hub you can build with a 32h rim and you have a huge choice. That’s what I would do in the same situation. See this link.
You can build a 32h rim onto a 36h hub, just miss 2 holes on each side
Yes you can do it, but it’s not a straightforward build. 32 on a 48 is much more like a standard wheel build, and the stress from the wheel is distributed evenly around the hub.
Also available in the UK
I did think about 32h but don’t think it’ll be strong enough for what I want (Light/medium muni and road). I’ll have to have a look at that thread…
32h will be strong enough for Muni and road, I use 32h for Street and Muni on my 24" built on a 48h hub, I’m also riding 32h on my Trials uni which gets beat up. There’s not a big difference of strength between 32 and 36, I went with 32h because I have a better choice of rims.
+1 jaco, I have a 32 hole trials wheel that sees tons of abuse and has stood up fine
Too narrow for me, but I’ll keep looking.
Mind, 19/20" wheels are inherently stronger due to their diminutive size.
Wouldn’t a 32h rim to 48h hub build require two spoke lengths though?