Can I sum it up as Aviron is the peloton of the community and Hydrow is the Zwift? The difference being Zwift caters to people who are already vested and more hardcore in some ways where as peloton is the general public who want to try and get a quick good workout?
Also - if you are following the peloton model - how are you going to build out the celebrity following for your athletes? I think that is one of the key components of why people buy in.
Product pricing - are you going lower cost than peloton as you could be considered a substitute product.
Good luck on the journey!