So, 1 way commute of 17.5 miles. Usually 1 hour and 15-20 minutes. Mostly backroads and bike paths, a few stoplights and stop signs. 1 hour once, big ring, hammer time. 1.5 to 2 hours a few times. Heavy rain ,wind, snow or all three. Part of my ride is along the mystric lake, nice riding, scenic and often some headwinds. Surly cross check, 35 mm tires, rack and bag.