Actually, my ride was with a geared 36. I tend to cruise around 14 to 15 mph, but there are enough slow downs here and there to bring my average down to closer to 13.5 mph. Uphills in low-gear with 150s tend to be around 8-9 mph. Gentle downhills are around 17-19 mph. I’m sure being on a course where you don’t have to slow down for intersections, underpasses, and such would make for a faster time.