I'm a 68 year old newbie. I've been riding for 5 days and last rode a bike 25 years ago. I'm riding a 2016 Giant Roam 1. What has shocked me is how truly out of shape I am. I have been averaging 3-4 miles per ride at only 8-9 mph. After reading in another thread that I have to avg. 16-18 mph over 20 mi. To be considered a serious cyclist, I'm a bit discouraged. I do consider myself serious about this, I'm just not very good yet. I have ridden every day I have had my bike and I intend to keep it up. Even at my paltry speed and mileage I have improved a bit every day. I know I'm working at it because I come in out of breath and with rubbery legs every day. I've enjoyed the BF while I was researching bikes and I'm really looking forward to a long relationship with my Giant.