The 11 Pro has the forward-outside idlers stock, and scratchers.
I'd almost say the wheels should be on the inside where the scratchers are installed, by looking at hifax wear..
I moved my forward-outside wheels to the middle-inside location to try getting my hifax to wear properly..
Some are just adding an extra set, even 2 sets.. I think the 155s can get away w/o the rear center set personally, may be different on the 163s. Thats just going by how my hifax are wearing at ~900 miles. I'll need new ones by end of the season.
But, a note worthy note: The orig owner ran w/o any idler wheels in the skid for the first ~200ish miles...so maybe thats where a lot of wear came from?
