I brought these in as a sample after many emails on dimensions. I had orriginally hoped to used them for our 700c Ramblers, but it was not going to work. They are perfect for 650b x 38mm, ok for a 650x40mm slick but not wide enough for knobby options out there.
Outer width is 54mm, inner 46mm. The diameter is close to perfect for 650B, better than most honjos I have handles.
Includes standard Sim/Honjo hardware kit.
Note: free shipping applies in the US, it is reflected in the price