Crust has a lovely write up of this frame so we are just gonna leave it here:

The Wombat is a single speed mountain bike amongst the second coming of the "Klunker". Don't get me wrong, Klunkers are cool. I can think of some people out there doing that term justice, but at the same time I see that word becoming synonymous with novelty. The 'Bat is certainly not a novelty, its a bike designed with purpose, and that purpose isn't to be a damn "Bar Bike". The Wombat is my idea of a bike that you can ride 60 miles to some single track, a set of jumps, a skatepark, or a street spot and ride it when you get there. It's got a high bottom bracket and relatively short back end to keep it nimble and easy to get off the ground. It's slacked out enough to be stable on long chunky cliffside single track, but not so much that it's lazy and can't make it around the hairpin at the end of the straight. 

Build Notes:

Designed around a 27.5x2.6" tire. You may be able to cram a 2.8" in there but it will be a bit tight in the rear triangle. If you're looking for a super speedy XC style setup the 2.2?" UltraDynamico MARS is ideal. If you want to run some fenders you could probably fit something like a 2.4" tire in there with some Honjo Flat 80s.

The Wombat is designed with V-Brakes in mind. You can use Canti brakes if you'd like, but the V's stop better which you will want if you're riding this thing down the side of a mountain as intended. The V's stop just as well as a disc brake right up until you get into some icey snowy conditions and your rims get cold and freeze over a bit, but even then they work fine.

It has a 73mm BB shell, so it takes a mountain crank.

The 'Bat has internal dropper routing with the intention of being fit with something around a 100mm dropper post or less.

It also has internal dynamo routing. Ride it at night.

It's got three pack mounts on the side of the fork to throw a Cargo Mount or Many Thing Cage on and strap some stuff to. You can also chuck a little bag support on using the hole in the fork crown and the brake posts. All of that together with a frame or saddle bag and I don't see why you couldn't take this thing on an all out tour.

Max Chainring Size is 36t. You may be able to get a 38t on there, if you're running a square taper crank.

If you are having a bit of trouble picking a gear ratio: a 32t chainring and 18t freewheel is a good gearing to start with (2:1) and you can go from there. If that feels too hard, bump up to a 20t freewheel. If it feels too light and you spin out a lot, go with a 16t freewheel or a 34-36t chainring. Or for the multi gear'd enthusiast, you could throw a Problem Solvers derailleur hanger on it and use the dropper routing to run housing down and tape it to your chain stay using Newbaums. I'd recommend giving the ol' single speed a shot though.

Seatpost clamp included.

ED Coated to help protect it from the elements and inhibit internal corrosion. This doesn't mean you're free to ride it into the ocean though.