Looks like the trail max has been replaced with the trail smart and what I read the 20-80 tire gets good reviews ? Other then about 7000 miles you get from them but they are V rated. Any one try them yet ?
Had some on my last bike, a KTM 990Adv so a 90/90 21" size and profile. They were dangerous, I could easily ride off the side of the front tyre and still has chicken strips" on the rear, I've never done that before !! They profile may be OK for the S10
I'd used Roadsmarts on a previous bike and really liked them.