Jet Sled Universal Wear Bars can be mounted to any sled or Jet Sled. Wear Bars put the wear and tear of travel on the bars instead of the sled, extending your sled's life. SWB1: Compatible with JSR, KDR, JSUV SWB2: Compatible with JSX, JSM, KDX SWB3: Compatible with JS1, JSMM, KD1