Tannus Armour reduces from 15mm when new, down to about 5mm after a few months so, if you use those, don't assume you have 15mm of protection, you won't! I'm on the road only so I ended up putting the Tannus solid tyres on, but you can't do that on trails, they don't make a solid MTB tyre. I'm...
@Gary I agree and they wouldn't be much different, I was just thinking more about how Shimano could market such a thing and enough people would buy it. The Saint was a PITA because it had a stronger spring on it so shifting took more effort.
Maybe the answer is a Rohloff hub? Yes they are...
There's a gap in the market. All Shimano has to do is make a beefed up "eBike" 12-Speed rear mech, like Saint (or even beefier).
There is no Saint in 12-Speed or 11-Speed so there is currently no solution.