All participants riding the Bicycle Built for 7 sit in a circle, making it possible for everyone to contribute to the active portion. Everyone's bike pedals are connected to a component that moves the bike as a whole.
This design is already in use in places like Germany and is a great way to get everyone fit while having fun.
Implications - Products that allow consumers to work together are appealing to those who enjoy spending time with others. A brand trying to appeal to a wider audience could hone in on designs catered towards groups.