Piaggio B125: history, specs, pictures

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Piaggio B125
Also called B 125
Production 2005
single cylinder, four-stroke
Bore / Stroke 57.0mm x 48.6mm
Top Speed 65 mph (104 km/h)
Horsepower 14.62 HP (10.9 KW) @ 9500RPM
Torque 8.85 ft/lbs (12.0 Nm) @ 8000RPM
Fuel System carburetor. walbro wvf 7
Ignition electronic cdi, variable spark advance
Transmission Gear box: automatic
Clutch: automatic dry centrifuge type
Suspension Front: telescopic hydraulic fork, ø 35 mm stanctions
Rear: twin dual effect hydraulic dampers, 4 position spring pre-load adjustment
Brakes Front: single disc
Rear: single disc
Front Tire 110/70-16
Rear Tire 140/70-16
Wheelbase 57.87 inches (1470 mm)
Length 83.07 inches (2110 mm)
Width 27.56 inches (700 mm)
Seat Height 30.71 inches (780 mm)
Weight 328.49 pounds (149.0 Kg) (dry),
Fuel Capacity 2.64 Gallon (10.00 Liters)
Manuals Service Manual

The Piaggio B125 was a single cylinder, four-stroke standard produced by Piaggio in 2005. It could reach a top speed of 65 mph (104 km/h). Max torque was 8.85 ft/lbs (12.0 Nm) @ 8000 RPM. Claimed horsepower was 14.62 HP (10.9 KW) @ 9500 RPM.


The engine was a liquid cooled single cylinder, four-stroke. A 57.0mm bore x 48.6mm stroke result in a displacement of just 124.0 cubic centimeters. Fuel was supplied via a single overhead cams (sohc).


The bike has a automatic transmission. Power was moderated via the automatic dry centrifuge type.


It came with a 110/70-16 front tire and a 140/70-16 rear tire. Stopping was achieved via single disc in the front and a single disc in the rear. The front suspension was a telescopic hydraulic fork, ø 35 mm stanctions while the rear was equipped with a twin dual effect hydraulic dampers, 4 position spring pre-load adjustment. The B125 was fitted with a 2.64 Gallon (10.00 Liters) fuel tank. The bike weighed just 328.49 pounds (149.0 Kg). The wheelbase was 57.87 inches (1470 mm) long.