New here. Been spinning in the gym the last three months, up to five classes a week now. I'd like to get out on the road with a local club as soon as it warms up. Now, I'd like to work on my endurance, balance and spinning at home. My killer workouts will still be on the stationary bike in spin class. So... I've decided on a Kreiter roller. If I go with one of the models with the 4.5 inch rollers, I understand I'm gonna need a fan, for more resistance. It sounds like that adds a lot of noise. I plan on watching videos, listening to tunes when I ride. Am I better off with smaller rollers? I'm tall and lean, only weigh 160. Are the 2.5 inch rollers out of the question? Which model makes the most sense? Any suggestions appreciated.