125cc 3 + 1 Semi Auto & Reverse Engine Motor PIT QUAD DIRT BIKE ATV DUNE BUGGY thumpstar The YX engine offers relliablity

The YX engine offers relliablity and performance

Thumpstar have always prided themselves on their core lineup

47mm DISTANCE BETWEEN TOP END COVER (RECTANGLE ONE

5-liter fuel tank and EFI (Electronic Fuel Injection) system

Brand New 11mm 150mm Gear Lever Shifter Handle 125cc PIT PRO QUAD DIRT BIKE ATV

125cc 3 + 1 Semi Auto & Reverse Engine Motor PIT QUAD DIRT BIKE ATV DUNE BUGGY thumpstar The YX engine offers relliablitySKU: PA11 Brand New BT 125cc Semi auto Engine Motor 3 Gears Forward + Reverse Gear For ATV Quad Bike Go Kart Dune Buggy ENGINE SIZE 125CC GEAR SYSTEM 3 FORWARD; NEUTRAL; REVERSE Type Horizontal, single cylinder, 4 stroke, air cooled Start Method Electrical Start Bore x Stroke 52. 4?? 55. 5mm, 119. 7mL Compression ratio 9. 0: 1 Maximum net power rpm 5. 8 kw 7500r min?? 375 r min