FSA KFX Stem

The FSA KFX stem is designed for a standard 1-1/8 inch steerer tube, which is the most common size for modern mountain bikes. As long as your fork uses this standard diameter, it will be compatible.

This stem is optimized for cross-country and trail riding. Its CNC-machined aluminum construction balances weight savings with the stiffness required for responsive handling on technical terrain.

The -12 degree angle provides a more aggressive, lower front-end position compared to stems with a neutral or positive rise. This helps keep your weight centered over the front wheel, which improves traction and control during steep climbs and technical maneuvers.

This stem features a 31.8 mm handlebar clamp diameter. It is compatible with standard 31.8 mm bars, but it will not fit the larger 35 mm diameter bars found on some newer downhill or enduro setups.

Yes, CNC machining allows for precise material removal, which keeps the stem lightweight without sacrificing structural integrity. This results in a stiffer interface between your handlebars and fork, leading to more direct and predictable steering.