We built our reputation on the Mach 4; it is simply the most efficient, best climbing, sprinting and descending World Cup level cross country and endurance race bike ever built. Off the chart frame stiffness, ultra-light weight, and awesome climbing traction come together to deliver an incredible race bike. But the beauty of the Mach 4 is that it descends like no other, putting its XC competition off the back. More than one editor has stated that the Mach 4 descends as well or better than many longer travel bikes, yet possesses the refined handling and pedaling efficiency of an elite cross country race rig. Read More...