Whoa. Mountain bike tires are loud.

Loud enough that I had to turn up the speakers on my little movie set up. I am sure that people are wondering what mayhem I am creating in the garage. Explosions screams and gunshots..... almost like a spin class on Red Bull. Anyway another 15 minutes in, stuck in gear 4 but making progress. Legs are burning as well as the core it is harder to stay balanced on a bike that is not really moving. Will put up a picture of the set up later.