Foes Racing 2:1 4X: The Foes 2:1 4X comes standard with Fox's Float RP23XV rear shock or choose to upgrade to Foes' new Curnutt AIR 2:1 suspension, giving the frame a perfect 4" of rear wheel travel. Superb for racing 4X, DS, or your local dirt jumps, the 2:1 4X frame includes heavy duty gussets at the head tube and a one-piece monocoque top tube with built-in contours to arrest torsional twist and yaw. With the 2:1 Curnutt AIR shock and its adjustable rod end, you'll be able to change the head angle by +/- 1 degree and raise or lower the bottom bracket height for an advantage when the courses change during the summer race series. Lighter weight, the 2:1 4X AIR has all the qualities to win. Ride a Foes and you'll be riding the frames everyone knows as 'the Champions' Choice' - hand-built and tested in the U.S.A

.: PLEASE NOTE: All Curnutt shocks and springs are handmade specifically for each frame. To ensure you are getting the correct spring rate when placing your order you must specify your weight in full riding gear, helmet, pads, backpack etc and what type of riding you will be using your bike for, i.e.; DH racing, XC, trail riding etc. This will help us ensure that the spring rate and shock configuration will match your weight and intended application.