FSA NS SMR Stem

SMR stands for Smart Cable Routing. It is a specific design by FSA that allows brake hoses and derailleur cables to be routed internally through the stem and into the frame, creating a cleaner cockpit and improved aerodynamics.

This stem is compatible with standard 31.8mm diameter handlebars, which is the most common size for modern road and gravel bikes. As long as your current bars match this diameter, they will fit.

A 0-degree angle provides a neutral, horizontal profile. Compared to stems with a positive rise, this will likely result in a slightly more aggressive, lower handlebar position, which is ideal for riders prioritizing aerodynamics.

While you can physically mount the stem to your steerer tube, the primary benefit of the SMR system is its ability to hide cables. If your frame and headset are not designed to accept internally routed cables, you will not be able to utilize the stem's main feature.

No, the stem length is fixed at 120mm. You should ensure this length matches your current bike fit requirements or your intended reach adjustments before purchasing.