The first Thursday of every month during the summer months there is a bike gathering at Dulono's Pizza in Mpls, here is a link for directions.
Welcome to Dulono's Pizza
The neat thing about this gathering is that it's not about any specific brand or type of motorcycle, you will see every size, shape, and color of motorcycle imaginable there including some really good built from scratch bikes.
There are some,,,,,,,,,,,,,,,,,,,,,,,shall I say "Riff-Raf" there,,,,,,,,,,,,,,,,,,,,me included,,,,,,,,,,,,,,,,,,,,,and you are likely to see some outlaw stunting going on, but for the most part the people that go there are riders that are only interested in mingling with other riders.