This is a picture sent to me by TanTan. I emailed them asking if I could buy a spare set of the shock mount hardware. It costs $60.00 + $10.00 shipping for these 2 barrel bolts. In the picture top bolt is roughly 70mm length with and 8mm diameter with an m6 screw, this bolt is actually the bottom bolt in the shock mount and the shock mounts upside down. There are 2 14 mm spacers that go on either side of the 22X8mm shock hardware. The bottom bolt in the picture is roughly 28mm X 8 mm with an m6 screw, and its the top mount hardware. Top is 22 mm inside width, bottom is 50 mm inside width. The linkage is metal, i believe aluminum.