These are the known mechanical and performance specifications for your 2013 Husqvarna WR125.
Basic Specs

Engine
Displacement124.82 ccm (7.62 cubic inches)
TypePower valve with mechanical control on the exhaust port.
DetailsSingle cylinder, two-stroke
Max RPM
Compression
Bore/Stroke54.0 x 54.5 mm (2.1 x 2.1 inches)
Valves/Cylinder
FuelingCarburettor. Mikuni TMX38 Carburettor
Ignition
Exhaust
Lubrication
CoolingLiquid
Drivetrain
Gearbox
Final DriveChain
ClutchMulti plate, cable operation
Driveline6 speed constant mesh
Fuel Economy & Polution
Fuel Consumption
Fuel Capacity8.10 litres (2.14 gallons)
Emissions
Chassis
Frame TypeChromoly single tube frame cradle utilizes rounded-rectangle elliptical tubing.
Rake26.5°
Trail110 mm (4.3 inches)
Front Suspension48mm Kayaba USD
Front Travel300 mm (11.8 inches)
Rear SuspensionSachs Multi Adjustable Shock with Soft Damp Linkage
Rear Travel295 mm (11.6 inches)
Seat
Seat Height975 mm (38.4 inches) If adjustable, lowest setting.
Alt. Seat Height
Total Height
Total Length2,260 mm (89.0 inches)
Total Width840 mm (33.1 inches)
Ground Clearance325 mm (12.8 inches)
Wheelbase1,465 mm (57.7 inches)
Dry Weight101.0 kg (222.7 pounds)
Wet Weight
Wheels & Brakes
Front Tire/Tyre90/90-21
Rear Tire/Tyre120/90-18
Front BrakesSingle disc. Wave disc.
Front Brake Diameter260 mm (10.2 inches)
Rear BrakesSingle disc. Wave disc.
Rear Brake Diameter240 mm (9.4 inches)
Wheels
Comments
Digital dash, street homologated.