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: 2.75 x 21 45M Rear Suspension: Twin Sided Swing Arm Rear Brakes: Disc Rear Tire: 4.10 x 18 59M Dry Weight: 205 lb. (93 kg.) Fuel Capacity: 1.5 gal. (5.7 L) Wheelbase: 52.4 in. (1331 mm) Ground Clearance: 12.4 in. (315 mm) Seat Height: 33.9 in. (861.1 mm) Trail: 4.6 in. (116.8 mm) Rake: 27 Transmission: Manual