These are the known mechanical and performance specifications for your 1989 Benelli BX 125 Enduro.
Basic Specs

Engine
Displacement123.00 ccm (7.51 cubic inches)
Type
DetailsSingle cylinder, two-stroke
Max RPM
Compression11.5:1
Bore/Stroke56.0 x 50.0 mm (2.2 x 2.0 inches)
Valves/Cylinder
Fueling
Ignition
Exhaust
Lubrication
CoolingLiquid
Performance
Horespower17.00 HP (12.4 kW)
Torque
Top Speed114.0 km/h (70.8 mph)
Fuel Economy & Polution
Fuel Consumption
Fuel Capacity10.00 litres (2.64 gallons)
Emissions
Chassis
Frame Type
Rake
Trail
Front Suspension
Front Travel
Rear Suspension
Rear Travel
Seat
Seat Height
Alt. Seat Height
Total Height
Total Length
Total Width
Ground Clearance
Wheelbase
Dry Weight
Wet Weight112.0 kg (246.9 pounds)
Wheels & Brakes
Front Tire/Tyre2.75-21
Rear Tire/Tyre4.10-18
Front BrakesSingle disc
Front Brake Diameter
Rear BrakesExpanding brake
Rear Brake Diameter
Wheels
Comments