@oscarwagner The tires are definitely wider than a traditional road bike and I must admit that I like the added stability they offer. For measurement, I have found that keeping the tires inflated to the maximum air pressure is the best bet. I have not had any verification ride or post calibration discrepancies, but I do check the tire pressure at the beginning of every measurement day. Most of my measurements are 5k solo rides but I did measure a half with a collaborator and we came up spot on. Overall, it has made me more "counter-productive"!! Sorry, couldn't help myself with that one. 
