Engine 4-stroke, single-cylinder, SOHC, air-cooled

Displacement 144cc

Bore x Stroke 58.0 x 54.4mm

Compression Ratio 9.5:1

Fuel System Keihin PB20 carburetor

Ignition Digital DC-CDI

Transmission 5-speed, return shift, with wet multi-disc manual clutch

Final Drive Chain Engine Type: Single-Cylinder Displacement: 8.8 cu. in. (144 cc) Bore and Stroke: Bore: 2.29 in. (58 mm); Stroke: 2.14 in. (54.4 mm) Cooling: Air Compression Ratio: 9.5:1 Fuel System: Gas Front Suspension: Telescopic Fork Front Brakes: Disc Front Tire: 70/100 - 17 40M Rear Suspension: Twin Sided Swing Arm Rear Brakes: Disc Rear Tire: 90/100 - 14 49M Dry Weight: 191.7 lb. (87 kg.) Fuel Capacity: 1.5 gal. (5.7 L) Wheelbase: 49.6 in. (1259.8 mm) Ground Clearance: 9.3 in. (236.2 mm) Seat Height: 30.7 in. (779.8 mm) Trail: 3.43 in. (83.8 mm) Rake: 27 Transmission: Manual