I've used Turf Tamers, they worked good for one season. The next year they went into the trash after throwing studs and going flat in the first 2 mains of the season.
For the razr mx fronts I'd go with at least 4 maybe 6 studs in each center lug and probably 3 in each of the outer lugs. Most people use 2 per lug on cheng shins.
Cases, no chain break, have scaring from rod failure that has bee smoothed out. $135 shipped in he lower 48
Boss atv rear wheel hubs, one taken out of package to check splines on an axle. $60 shipped
Boss atv brake rotor hub, New $45 shipped