After going through numerous tyres, WTB Venture, WTB Resolute, Teravail Rutland ive finally found the best singletrack tyre for those riding on the MTB end of the spectrum. Schwalbe have a strange way of labelling tyre sizes, 700, 28 and 29 all being used and all being the same but cycling components have never had a history of simplicity. anyway, these are the most aggressive and grippiest by far, they are not quite 2.0" on a 24mm internal rim, 47mm when fitted so may stretch slightly in time. the next step up would be actual 29er mountainbike tyres so worth a look if you only ride gravel to link up the trails.
Interesting tire - if you have the clearance. I run 27.5 x 2.2" for my off-road setup and just run MTB XC tires. What's interesting is the tread pattern is clearly different than Schwalbe XC tires. It it doubtful any tire manufacturers will have gravel specific treads >2" / 50mm.
Ive got a set of these for my Checkpoint. Was looking for a tire when my local trail has mud pits and soft surfaces. These are about the fastest rolling tire that can deal with some mud that I could mount on my bike. Despite the pics, there's a lot of clearance on an SL mounted on 700c i24 rims - https://imgur.com/a/TsJ3yHW Haven't used them yet. https://imgur.com/y4NigPdhttps://imgur.com/y4NigPd