This is a first gen steel OS Bikes Blackbuck built as a rigid single speed. Great condition and really unique geometry (see drawing). Sized as a medium (18.5") but fits closer to a large - riders between 5'10" - 6'2" should be fine.

Includes Vassago ODIS fork, Chris King headset, TruVativ Stylo cranks, bars, stem, and post, and WTB saddle. Handbuilt wheels feature DT Swiss 340 disk hubs laced to Bontrager Mustang OSB rims. Avid BB7 disk brakes, 160mm f/r. This is a really fun bike (think giant BMX bike). Includes der hanger if you should decide to run gears. Split EBB makes chain tension a breeze or if you run gears, allows for fine tuning of BB position.

If you're not familiar with the Blackbuck, this was a pet project for Mark Slate (Founding partner of WTB and one of the 29er pioneers. Mark was responsible for bringing us the Nanoraptor, the first proper 29er MTB tire).

Here's some links with more info...
http://www.osbikes.com
http://g-tedproductions.blogspot.com...blackbuck.html
http://forums.mtbr.com/29er-bikes/pr...ck-500218.html