It’s also nice because it gives me an excuse to commute in a more relaxing manner, rather than treat it like a TT.
Interesting point worth picking up on – most people ride far too hard on their “easy” rides and not hard enough on their “interval” bits which results in you always going around at Z3/4 without the ability to build the endurance in Z2 or develop the high end in Z5.
A mate did RideLondon based entirely off commuting and crit races – he’d done no long rides whatsoever. His week would be steady away commutes with some crit races in the evenings – Crystal Palace, Lee Valley and Hillingdon usually, sometimes only one of them, sometimes 2-3 in a week.
He absolutely smashed RL, under 4hrs and it was entirely off his ability to go into the red for short periods and then just sit there at Z2 and recover. His bunch racing skills will also have played a part, it allowed him to just sit in the front group doing Z2, go deep on the hills and then recover again.