Re: track change
I've just installed a 3" x 162" on my 2013 M1100. Buy a good set of snap ring pliers, and installing 7 tooth drivers will make your life easier. The 3" will clear with the stock drivers (I used a bit of silicone spray on the track so the drivers would slide easier when installing. Nice if you have a friend to help, too (although mine seem to disappear when I could use a hand lol). I chose not to drop driver size as the sled is getting a C3 syncrodrive with a lower ratio. Plan to spend at least double the time that it takes to install a track on an M-series, and then add one hour. Worst part is dealing with the reverse chaincase, take pics or label everything for reassembly.