Originally Posted by
jdon
Interference from overhead wires.
Doing a 2km loop with a group, sprint with a recovery. Blew up on first lap, did a few slower ones, then back with the group for a fast final lap. Other guys had 50+ km/h readings, but I wasn't sure about mine so I checked stuff like the tire size in the set up etc. Looks like I might have done this speed as I overtook a couple of guys in the sprint and was closing on the front riders who hit 50+.