A standard (8 Gal?) Heinrich tank fit my conversion/sidecar. Even had room under the tank for a /6 brake master cylinder. My coils went in the /2 battery case and the battery in the sidecar.
More than a few years ago, I tried to fit an original Heinrich and it wouldn't fit
and I don't recall where the interference was at. I am using one dual lead coil
so don't think that was the problem. Time to check again I guess .
Thanks
I just checked my tank and it is the same on both sides. That is, both sides are angled up at the front to clear the upper sidecar attachment for either right hand or left hand sidecars.