While it does look like the route is rather mtb, Jay is riding a gravelbike with 42mm.
Mikko seems to be doing well. https://twitter.com/mkpaa
Narrower tires and rim brakes, and he's riding very carefully, if there's anything sketchy. Or at least he was spending a lot more time than some on the rougher parts of a gravelrace around here this spring, when he was testing his kit. But he's a legend, he should be fine.
While it does look like the route is rather mtb, Jay is riding a gravelbike with 42mm.
Mikko seems to be doing well. https://twitter.com/mkpaa
Narrower tires and rim brakes, and he's riding very carefully, if there's anything sketchy. Or at least he was spending a lot more time than some on the rougher parts of a gravelrace around here this spring, when he was testing his kit. But he's a legend, he should be fine.