Stem: 1 and 1/8th inch steerer and 100mm reach (I measured centre of handlebar to centre of steerer) Handlebar: 25 and 1/2 inches wide, with I believe a 10 degree sweep. Diameter of handlebar/stem looks like 1 and 1/2 inches. This was taken off a new bike immediately after purchase, so it is sort of new. Located Vic city/Saanich border.