This is the V-5 threadless Stem from NITTO.
The stem is an updated version of the V-4 stem which was inspired by the old school Bullmoose MTB handlebars.
Clamp diameter：25.4mm
Steerer clamp：1-1/8"
Length：100mm, 120mm
Stack height: 42mm
Material：Chromoly
*These are suitable for handlebars that has over 100mm centers.
MADE IN JAPAN 