It was really hard to tell how fast these wheels are, my legs were sore and flat! It took a whole lot of effort to get my legs to respond, once I got the speed up it was easier to hold, I did have one really strong iide wind hit e and it did push me side way but riding a full disk in the rear and 1080mm in front this was nothing. I didn't try any sprints to see if it could respond quickly, that will be for another day. These wheels are still lighter than the training wheels that I was using on this bike. Looking at my stats from the ride the wheels are faster than the race wheels I was using which were 700 grams lighter (tubular) so the 16mm deeper rims does make a difference even on these flat legs! Sothis was a successful and a great adventure test ride... Be safe out there, enjoy your ride!