A lot of our gravel roads around here are badly washboarded or have pretty deep marble-sized gravel. Last year I did gravel grinders on my ‘cross bike with 35c tires and it wasn’t great. I’m sure it was a combination of the bike geometry, frame stiffness and narrower tires. I’ve test ridden some gravel bikes with 650x47 tires and it almost felt like floating. The price difference between the new gravel bikes I tested is a couple thousand dollars though, so I can afford to compromise a little on the ride. I have a Cervélo R3 that I ride about 75% of the time, so the V55 would be a secondary bike.