Check out Jim at Sinco's new flatland video of Spencer (here): Spencer is using his pre-release KH20 Flatland, which should become available in the next few weeks. Specs on the KH20 Flatland are:

Fusion Street Saddle

KH20 Longneck Frame

New 20" Flatland wheelset - an ultra wide, 20x47 mm rim

Maxxis Grifter Tire

110 mm Moment cranks

Odyssey Twisted pedals