Hydration is the name of the game. Make sure to drink plenty of water before, during, and after your spin class.
Avoid loose or baggy clothing. Tight leggings or bicycle shorts will make a significant difference in your stride.
A light healthy snack before your workout will help fuel you through the exercise.
Get those nutrients!
Stretching is important before and after your workout. We don't want to get cramps or pull a muscle now, do we?