Dubman On a flat course with light wind, I can do a 10m TTs at 30/31mph and 25m TTs about 28/29mph
A flat road race or crit at about 27mph. I did RideLondon at just over 25mph for 100 miles in 2016 - there’s about 1,200m of climbing in that though.
Feel filthy talking about cycling in imperial measures.