The trouble with your theory is the center shock/coil spring are stationary (except for there ability to compress) and in same location for both 154 and 163 XP...As for the track the 163 put 4.5 more inches of contact to the snow vs the 154. depending on if you bought a challanger light or Powdermax track the differance in track weight can be approx. 5#.
Suspension are by design adjustable to suit each riders preferance, this info is nothing more than sharing solutions that may be causing 163 owners some grief....If BRP's suspension was "spot on" there wouldn't be a need for so many spring options.... Like the TRA clutch there designed to be tuned to the preferance of the rider.
OT
I realize they are stationary and wasn't sure if they were in the same place for the 154 vs the 163. I will measure when I am at the dealership next week. The reason Ski Doo makes different springs is not because of weight transfer, its becuz not all riders are created equal! (weightwise that is
) Hence the IRP system from Arctic Cat. I strayed a bit off topic here, my main point was with your weight transfer and the idea that more is better. I refer to my earlier post:
"Ski Doo actually designed the SC-5M that is on your sled to have less weight transfer so that it remains flatter on the snow and planes off instead of trenching through it. Your recommendation of the more transfer the better will counteract the design of the suspension and you will be giving up more than a rough trail ride as the sled will begin to dig more in powder with less transfer so you will be giving up some deep snow performance as well."
As discussed in SnowTech, Oct/Nov 2007 page 114 right hand column:
"Another thing we noticed riding the Summit models was how they didn't wheelie like a traditional Summit. Ski-Doo has reduced the amount of transfer in their new SC-5M rear suspension. While they wanted to get the weight off the skis for climbing, their hill climb teams have found the sled climbs better if it is kept flatter when climbing and getting on plane in powder."
You are saying more, they are saying it climbs better and stays flatter with less......no offense intended OT, but I'm gonna go with Ski-Doo, their engineers, their hillclimb teams, proven custom built mountain sleds, my own custom built mountain sled and the media on this one.
I will concede that BRP is not spot on with the suspension, but IMO, adding more transfer is counteracting the design of the suspension. I do realise you are simply trying to help others though, so I will give you credit for that.
immediately
