I have a Giant hard tail with rockshox 30, forks - disc brakes and schwalbe Rapid Rob 27.5 , 2.25 tyres. I find them a bit too grippy for my riding needs. I'm looking for a tyre with less grip and narrower, maybe 27.5 , 2.0 or less? Can anyone suggest a tyre suitable for my needs? I looked at the Maxxis Crossmark 27.5, 2.01. Anyone use them? Your thoughts and help appreciated