2009 Derbi Dirt Boy 50 Specs

motorcycle specs

These are the known mechanical and performance specifications for your 2009 Derbi Dirt Boy 50.

Basic Specs

Year2009
MakeDerbi
ModelDerbi Dirt Boy 50
Cost

Engine

Displacement49.90 ccm (3.04 cubic inches)
Type
DetailsSingle cylinder, four-stroke
Max RPM
Compression12.0:1
Bore/Stroke39.0 x 41.8 mm (1.5 x 1.6 inches)
Valves/Cylinder
FuelingCarburettor. 14 mm
IgnitionCDI
Exhaust
LubricationOil pump
CoolingAir

Drivetrain

Gearbox1-speed
Final Drive
Clutch
Driveline

Performance

Horespower
Torque
Top Speed

Fuel Economy & Polution

Fuel Consumption
Fuel Capacity2.30 litres (0.61 gallons)
Emissions

Chassis

Frame Type
Rake
Trail
Front SuspensionHydraulic fork.
Front Travel120 mm (4.7 inches)
Rear SuspensionMonoshock.
Rear Travel140 mm (5.5 inches)
Seat
Seat Height610 mm (24.0 inches) If adjustable, lowest setting.
Alt. Seat Height
Total Height
Total Length1,290 mm (50.8 inches)
Total Width519 mm (20.4 inches)
Ground Clearance
Wheelbase905 mm (35.6 inches)
Dry Weight47.0 kg (103.6 pounds)
Wet Weight

Wheels & Brakes

Front Tire/Tyre2.50-12
Rear Tire/Tyre2.75-10
Front BrakesSingle disc
Front Brake Diameter160 mm (6.3 inches)
Rear BrakesExpanding brake (drum brake)
Rear Brake Diameter90 mm (3.5 inches)
Wheels

Comments

It appears you're interested in specifications for the Derbi Dirt Boy 50. This Minibike, cross model is powered by a Single cylinder, four-stroke engine with 49.90 ccm (3.04 cubic inches) of actual displacement before 12.0:1 compression. Fueling is metered via Carburettor. 14 mm allowing this machine to produce its horsepower and torque. According to our records engine heat of the Derbi Dirt Boy 50 is moderated by Air. You'll need to get familiar with the 1-speed transmission and pay attention to final drive maintainence. Our best information shows that the front tire size is 2.50-12 and the rear is 2.75-10 . The entire package is supported by the frame, . We know you like to go fast or cruise all day, but when you need to stop, you'll be dependant on Single disc front brakes and Expanding brake (drum brake) rear brakes. The Derbi Dirt Boy 50 was launched in 2009, and we're happy to know (or assume) you've got one in your garage. To help you keep your ride in tip-top shape, consider purchasing an owner or service manual.

Spanish made bike. Intended for child use.