Now that you mentioned it, I think that Kona has disc brakes (the photo or angle weren't great) and the site has no description of the bike. Nevertheless, that $550 price tag is high or else I'd snatch it in a heartbeat. We got some snow in Central Iowa yesterday but most of it melted today. Now it's just cold and will be in the 20's when I head out to work in the morning. My work commute is about 14 miles each way with mostly trail but I do have a few miles of roadway and a few hills to climb so single speed won't work. Simplicity is better in some cases just not mine.