Nitto begins with a solid piece of 2014 alloy and carefully CNC machines the mass into a beautifully sculpted stem called the UI-25. After initial machining, the stem receives heat treatment and a final polish. Slight CNC residual rillings are purposely left in the finish for added cosmetic charm. This stem is produced in low quantities in Nitto's Tokyo factory. If that means little to you now, it will become more significant when you handle and service UI-25, and find its true handcrafted beauty.

The standard 4-bolt face plate clamps to any standard 31.8mm handlebar, while the steerer clamp is 1 1/8" to pair with any modern fork. The UI-25 is available in 60mm-120mm length, with all of them featuring a 5° angle.