Just a heads up, I ordered a rear brake light assembly that attaches to the bottom of the mount (SH50 trunk) and a trunk inner case liner. Both are on backorder from SHAD. no worries.
Just a heads up, I had a SHAD 50 Liter and the mount shattered during a ride and after four of us went back 16 miles to the last known siting and did not find it we proceeded with our ride.
SHAD had ZERO interest in seeing pics of the failure or backing up their product. I promised them I would return that favor at every opportunity, hence this post. YMMV