Take your mountain bike adventures to a new level with the terrain crushing Shift Plus I/O 9 from Haro. 27.5 x 2.8-inch tires claw up rocks, roots, and everything in between with impressive traction, and a Shimano STePS E8000 motor cranks every ride to 11 with a power-packed punch. Endless possibilities unfold as you open the doors to new trails and the Shift's dual-suspension frame paired with plush RockShox components urge you to push farther than ever before. Shimano's electronic XT Di2 11-speed drivetrain shifts fast and accurately, and Shimano SLX hydraulic disc brakes with big 180mm rotors keep you in control with powerful one-finger braking. Getting low on tricky descents is easy, too, thanks to the TransX dropper post and handlebar mounted lever.