I've had the bike on the trainer nonstop since about 1 1/2 weeks ago, as I've been suffering through a nasty little cold and I didn't want to aggravate my coughing with any hard efforts outside. Today was the first time I've had my bike out and it was actually somewhat of a relief to be able to get it dirty with grit, salt, and mud. If you know me and my bikes, you know I don't like them clean.