This is a direct mount for the front derailleur from MicrOHERO.
It is a mount for attaching the front derailleur to the frame without the base of a small diameter car, etc.
Aluminum alloy CNC machined for very light. Bolts are made of stainless steel so you dont have to worry about rust.
Main Specifications:
Weight: 2.6 oz (75 g) (actual measurement).
Mounting band diameter: 1.6 inches (40 mm)
No box or manual