Super low gearing for touring on gravel bikes?

[luap]

Here someone described how to get a GRX 30/48 x 11-52 . It’s 11s so I don’t know if it’s possible with 10s.

Gravel Groad bike

On the tyres issue, I was staunchly against anything wider than 38s when starting down the gravel road (pun intended) but have found that my new minimum on the front is 45 and in most situations except the smoothest of hardback is 2.4 is my go to. 2.4s are very bike dependant though but I would encourage looking at the wider options. 2x has an advantage if you are on regular paved roads on your way too and from the dirty stuff. It gives options at higher average speeds too. GRX is pretty bulle…