144 x 2” track. Sled is in excellent condition. Always serviced and either in a garage or in trailer. It has many upgrades and all recalls have been done. Lots of extras on the sled, boondocker air intake, power commander, clutch upgrades, upgraded handlebars, two windshields, two rear bumpers, aftermarket front bumper, mountain side front spindles-allow you to change the front ski stance. Also many extras to go with the sled. Selling because we are moving south and no snow where we are going to. This sled is very fast and reliable. Also electric start and reverse. Look at the pics and let me know if you want more details.