jag767 said:Struck out! The cb77 rim doesn't work, I'm shelving the bigger drum for now. Just tires and I'm calling her done!
That's odd. Both drums are a similar diameter give or take a couple of mm. Which angles are wrong - side to side (different width hubs) or radial (different diameter)? Do MikesXS have an 18" rim to suit an XS1 or R5 hub? That might be close enough.