Might might not, dealer here has lots of bikes out said they cut one down and felt it had better powder performance than a 120 for a big guy and it restored some of the maneuverability lost in the lt kit.
Lots of great advice in this thread!
I'd highly recommend putting some solid seat time on your '15 LT before you decide to cut it narrower. The 2015 kits, both the ST and LT, are very much different in how maneuverable they are vs. previous models. Most riders don't notice or feel the difference between the 12.5 wide and 10.5 wide LT tracks on the 2015 LT, but there can be a powder performance difference between the two.
The 2015 rolled and raised chain case, shorter wheelbase, rail changes, and our final
recent suspension re-calibrations allow the production 2015 LT to handle and feel much more maneuverable than even the 2014 ST's, as stated by dozens of our demo riders, an opinion I also share.
I would even go as far to say that last weekend with Pastrana I was easily quicker and more nimble through the Utah trees on the '15 LT than I was on the '14 SX kit. Some of that was due to bike setup and brand differences, but I spent a full day on the SX, and the second day I traded between the '14 SX, '15 LT, and '15 ST. We had spring powder conditions, and we were sinking about 10" on average. It was nearly impossible to wash the front ski and the terrain was excellent- with wind lips, booters, and drops everywhere. Elevation was between 7.5k and 11.5k.
My final conclusions for this season are really surprising me. The '15 ST is easily my personal top choice for how I ride, and for our snow type here in Sandpoint. When I lived in Boise and rode McCall, you couldn't pry me off my LT in the finer, drier powder. I'm about 165 plus gear and ride a stock '14 KTM 450SX with a PMB exhaust end cap, Fastway risers/hand guards, Adventure pegs, Trail Tech Vapor, and a Cyclops light. I also run a Fastway System 3 stabilizer and love it. A new Rekluse is next.
Here's what I love about this ST/LT/SX argument: we all ride different bikes, have different snow conditions, and have different body types. So my opinion, however accurate I may feel it is, may not apply to you because your snow may be different, and you might weigh more or less than I do. That's the beauty of having 3 different Timbersled kits, and why I try to provide information, mostly devoid of opinion...
Here's the jest of my opinion:
2015 ST= For the rider who wants the best of all worlds. Very capable in the deep, great in firmer snow, excellent jumper, great climber, very nimble on and off the trail. Takes a bit more throttle input in the deep than the LT. Now the best suspension ride on the trail in typical to rough conditions.
2015 LT= Recommended for riders over 220lbs, or those who never want to worry about how deep it is, how steep, or coming in second. Floats like a butterfly, and tractors like a beast on waist-deep days. The most stable and forgiving kit we sell. Takes the least amount of throttle in the deep (because it stays on top) and will pull steeper lines and hold a side hill better than other kits. Feels surprisingly nimble on the hard pack, and is rapidly gaining in popularity.
2015 SX 120- Takes big hits the best. Great for the rider that loves big drops, or who takes hard flat landings a lot. 20.5" of rear travel. Only edges the ST on the trail if the whoops are massive. Is the most nimble kit we offer for hard pack or lower snow conditions. SX race track is 5 or 6 pounds heavier than the powder track, and pulls my motor down about 10% according to my tach, vs. the ST powder track. Requires more focus and speed on deep days compared to the ST and LT, but is still very capable. Basically built for the extremely aggressive racer/jumper.
Hopefully that helps some of you decide which way to go. In the end, all our kits offer the same grin factor- which is why we all ride anyway!
Blaser