By request, finally a GoPro mount for the rear reflector/Flash Tail light mount of a Madone Series 9. This was a design I was sitting on about 4 versions of, not knowing how I wanted it to work and look. There just isn't a lot of room to work with to make this sturdy and shake free.



This mount is just an insert into the existing Trek tail light mount supplied with all Trek Madone 9 Series bikes. You have to disassemble the Trek supplied mount and provide an M4 x 10 button head screw as well as an M4 nylon insert lock nut to secure the insert in the Trek part. There is approximately 2 inches (51 mm) of clearance from the Trek seatpost to the backside of the mount, once installed on the bicycle. This will be up for sale in a couple of days. If you need a second Flash mount, it is available from your local TREK dealer and is part number W516121.

The insert is available here.