WPS catalog shows a new 2.5" track in 146,154,163 (15" and 16"). They say it beats al other competitors tracks even 2.5 Challenger. Looks like a Attack 20 style
Same as the ascent on the 2011 Nytro only taller lug. .80 Duromiter so will be great in the sugar but sounds a little soft for tighter snow or over 200 H.P. Rode the track on the Nytro prototype last sping in the fluff and I seemed to work really well. Definitely comes out of the snow well.