Most of it
We try to follow the maintenance schedule, but use some common sense on a few things. Inspect brake hoses, replace as needed. Change brake fluid when changing brake pads etc. We do clean and lube the chain every 500 miles, change the oil and filter with full synthetic every 5000 miles, and clean the air filter every 1000 miles. Just use the same common sense that you use on your cars and you will be fine. I mean do we all really take our cars in and have the brake fluid flushed every 2 years like my owners manual says?? I don't think so. That being said, DONT ever forget to maintain and check your tires. They are the most important things to look at every ride.