That's why I went through axle, so I could swap in the wheelset from my 27.5 mtb (also explains the 180mm rotor on the front). Pics are with 27.5 x 2.35 hans dampfs - front is tight and rear won't work. I think you'd be set with 27.5 x 2.2ish though!
MTB stuff confused me, there's so many variations. Had a look at the sliders. What's your rear measurements? 135x10 thru axle? What are the sliders you picked?
And clearance wise? Looks tighter? I managed 2.1 29ers, but am just piecing together a 27.5 wheelset for that sorta stuff.