I went for the first ride on my new bike. 10 minutes into the ride my chain came off and i crashed to the ground. Here is how it ended up. One shop said it looks like it could be due to poor setup. I'm pretty sad about crashing my brand new bike so looking for answers. How likely would cross chaining be the culprite for my chain falling off? I dont think I was cross chaining though. I was riding along on flat, shifted gear, put the power down and it just went from under me.