currently running a 174x2.5CE, the 3" makes a lot of windmill noise above 40 MPH, it hooks up but leaves a huge hole for the person behind u, it throws huge grapefruit sized snowballs at the person behind u, the down hill braking Authority is awesome. it catches an edge in a hard corner id not under power, it likes to wheelie when hooking up, exemplified on boosted sleds, cannot zip down the trail, top speed is probably about 50-55 mph, on hard snow even with scratchers there are issues with cooling because it sits so high, and on Ice it is absolutely worthess. I've never ran a 2.6Pc, have tons of time o the 2.25 and it was a very good all around track. it always got up on the snow great with a properly setup skid.