Carter Holland of Black Market Bikes shows off the new Roam model. 
The Roam can be built up with 26-, 27.5- or 29-inch wheels. Carter says
the 27.5-inch setup was about 10 percent faster on his 1-minute, downhill
practice course than the 26-inch setup. It will be interesting to see how
many professionals are racing 27.5-inch-wheeled downhill bikes during
the 2013 downhill season.
Photo: John Ker/Mountain Bike Action