Nitto UI-86 Stem
Cold-forged from high-grade aluminium, the Nitto UI-86 is built for riders who want strength, precision, and a stem that looks as good as it performs. The cold-forging process produces a denser, stronger structure than casting — and it shows in the finish: a lovely gloss black or classic polished silver that gives any build a distinctly modern Nitto character.
The UI-86's -17° angle runs parallel to the ground on most bikes, making it an ideal choice for aggressive road or gravel setups where a low, stretched position is the goal. Flip it, and the +17° angle transforms it into a comfortable, upright stem for touring or town riding. One stem, two very different rides.
The "UI" in Nitto UI stems stands for "Ultimate Ideal" — and the UI-86 earns that name with its versatility, durability, and enduring Japanese craftsmanship.
- Construction: Cold-forged aluminium
- Stack height: 40 mm
- Angle: 73°/17° (±17° reversible)
- Clamp diameter: 26.0 mm (handlebar)
- Steerer clamp: 28.6 mm (1-1/8" threadless)
- Lengths: 60–120 mm (in 10 mm increments)
- Finish: Gloss black or polished silver
- Made in Japan