roadster

What is the weight capacity of the rear carrier on the 2021 Roadster please?

Just bought my R&M Roadster Touring yesterday. I got a great deal on a floor model (2018). I should be able to pick up in a couple of days (kept it to tune it up, and add a couple of things for me). Anybody know exact specs (or where to find them) on the 2018 model? Guy at the bike shop...