500cc fan-cooled engine, long 16"x156" track. Reverse, electric start, mirrors, speedometer, tachometer, handwarmers and 2 passenger seating is all standard equipment on this model. Of special note, this sled is a pre-production 89 model with a 1988 vin number. Likely was built up for engineering or marketing purposes. This unit has a special hand fabricated fiberglass handlebar pad that was a forerunner to the new-for-89 handlebar design. Also has slight variances to the windshield mounting location that seperates it from the production 89s. The rear tunnel extension and taillight housing is very different from the 88 models and slightly different from the production 89 models. This is a well preserved sled in very original condition. We have done some engine maintenance on this since buying it in the fall of 2005. Is now basically ready to ride.