Replacement Rim Ordering - Call Support First and have all model or part numbers you can find.
Took a little bit of time, but once they understood the issue with what I was ordering they found the right replacement and sent it right away. Perfect fit. They were also receptive to feedback around confusion on their product site that caused me to order incorrect parts twice. Overall what started out as a frustratingly poor experience was resolved and made right with the right listening ear.