It was actually not as bad as I was expecting. The bits we walked I doubt we would have got up much quicker on mtb’s, or we simply didn’t have enough traction not to slide out. I was going to flip to the bigger cog but forgot to pack an allen key (wouldn’t have had enough leverage to tighten the track bolts with my small multi-tool) and I guess I’ve found the limits of the current gear so that’s good.
I’m really impressed with the Gravelking Sk’s though. Will definitely be staying on this bike.