29-Inch Wheel (29ers)
Gain the biggest advantage in "rollover" with the 29er. Bigger wheels roll over and up things easier--It's a fact! The longer wheelbase makes the bike very stable at high speed, and the large wheels tend to hold their momentum through rolling terrain.
They're not the most agile bikes in the woods, but when you're used to it, it doesnt seem to hold people back on the local race scene.