This is a possibly how longs a piece of string question, with a lot variables that no one will be able to quantify.
I for the most part don’t race and don’t don’t do a heap of group riding. I do a few long endurance races/challenges through the year, and a bit of hills riding 100-150km.
My normal ride I do around my area is flat-undulating coastal ride on very good condition asphalt.
Q) I currently ride a Cervelo S3, riding this loop 55km, taking my last ride I averaged 34km/h at 250w. If I was to swap to a gravel bike, assuming the same aero wheelset, How much could I expect to see this average speed drop?
Riding out in the hills doing long sustained climbs and fast descents. How would a gravel bike be affected here(again assuming same set of aero wheels).
When I ride with others they are for the most part the same weight and FTP as me. So if I’m having to put out an extra 10-20watts to keep the same speed, I would start getting frustrated.
I have watched a heap of videos on YouTube about Gravel vs road bikes, but they are for the most part the GCN videos doing unrealistic (to me) comparisons.