998cc liquid-cooled. Trail-focused. Groomed-snow ready.
The ProStar S4 runs a 998cc liquid-cooled twin with sequential port injection, built for groomed-trail riders who want a compact four-seater. Matryx front suspension and PRO-CC rear handle trail bumps without overtravel. The 137-inch Cobra track grips like carbide, and 11.5 gallons gets you through a full day. Electric start, smart hand warmers, and a rear rack accessory round it out. Moon Motorsports stocks the 2027 INDY XC 137. See dealer for pricing.
