NITTO UI-2 Thread Cromoly Stem
The UI-2 is Nitto's CrMo threaded quill stem for road racing — a 2-bolt faceplate, 26mm bar clamp, and a 71° angle that puts you in a low, stretched position suited to performance riding. Seven extension lengths from 60 to 120mm, polished silver finish, made in Japan.
CrMo steel where most stems have gone aluminium. Stronger, heavier, and built to last decades.
Specifications
- Material: CrMo steel
- Bar clamp diameter: 26.0mm
- Quill diameter: 22.2mm
- Post length: 115–137mm (varies by extension)
- Extension angle: 71°
- Extension lengths: 60, 70, 80, 90, 100, 110, 120mm
- Weight: 252g (E60) – 329g (E120)
- Faceplate: 2-bolt
- Finish: Polished silver
- Use: Road racing
UI-2 Thread vs UI-2 Clamp-On
This is the threaded quill version — it uses a 22.2mm quill for threaded headsets. If your fork has a threadless steerer, see the UI-2 Clamp-On Stem instead.
26.0mm Bar Clamp
The 26.0mm clamp suits older Japanese handlebars and select Nitto bar models. Verify your handlebar's clamp diameter before ordering — it is not the same as the more common 25.4mm or 31.8mm.
Why Nitto
Nitto has been handcrafting bicycle components in Osaka, Japan since 1923. The UI-2 is a road racing stem that will outlast the bike it's fitted to.