So...
I own two 29ers and I thoroughly enjoy them (three if you include my 700c singlecross bike).
After riding the Karingal racetrack a few weeks back on my 29er was tough work. The track has quite a few steep uphill and tight switchbacks. Not wanting to go back to the 26" I thought I'd try the 650b.
I went back to the track last weekend. The Karingal track has lots of singletrack and tree roots galore coming out of the trail in all sorts of places.
The "DefCon1" is fantastic on the track. I like the bike so much I'm seriously considering buying one myself.
The new frames Definitive Concepts are building will have a steeper head-tube which will make it more responsive. I like the way it feels now even though the fitted 100mm suspension fork (X-Fusion Velvet-R) sits higher (slacker) than when I rode it with the rigid fork.
Sliding dropouts gives me the option to fit gears to the bike... not sure I would but the option is there.
Here's a pic of the bike with the suspension fork.

I wonder what the frame would look like in blue?


