Positioned in Derbi's sport motorcycle lineup, the 2015 Derbi GPR 50 utilizes a 49.4 cc (3 cu in) liquid-cooled single cylinder, two-stroke layout. Internal engine geometry specifies a bore and stroke of 40.0 x 39.3 mm (1.6 x 1.5 inches) with a 10.5:1 compression ratio.
On the scales, the GPR 50 measures 110 kg (243 lbs) dry. Rider ergonomics and chassis geometry center around a 810 mm (31.9 in) seat height — offering a neutral standover height that accommodates most average-inseam riders without sacrificing cornering clearance. The 13-liter (3.4 US gal) fuel tank supports practical everyday commuting and weekend road stints.
Within MotoLibrary's Derbi archive, this model family spans 2 indexed model years from 2004 to 2015, allowing buyers to track year-over-year changes in emissions tuning, weight and equipment.
Standover Height
810 mm (31.9 in)
Engine
Displacement49.4 ccm (3.01 cubic inches)
Engine TypeSingle cylinder, two-stroke
Engine DetailsSingle cylinder, two-stroke
Compression10.5:1
Bore x Stroke40.0 x 39.3 mm (1.6 x 1.5 inches)
Fuel SystemCarburettor. 17.5 mm
IgnitionElectronic C.D.I.
LubricationSeparate mixing with mechanical oil pump
CoolingLiquid
Transmission
Gearbox6-speed
Final DriveChain (final drive)
ClutchAutomated twist and go
Chassis
Frame TypeAluminium beam frame
Front Suspension41 mm upsidedown fork
Front Travel110 mm (4.3 inches)
Rear SuspensionAsymmetric swing arm. Monoshock.
Rear Travel130 mm (5.1 inches)
Wheels & Brakes
Front Tyre100/80-17
Rear Tyre130/70-17
Front BrakesSingle disc
Front Brake Ø300 mm (11.8 inches)
Rear BrakesSingle disc. Single piston
Rear Brake Ø218 mm (8.6 inches)
Dimensions & Weight
Dry Weight110.0 kg (242.5 pounds)
Seat Height810 mm (31.9 inches) If adjustable, lowest setting.
Use this page to compare this motorcycle by its real specifications, not only by model name. Focus on the details that affect fit, comfort, handling, range and ownership.
Seat Height
Check the seat height against your inseam and riding posture before choosing a motorcycle.
Weight
Compare weight carefully because it affects low-speed handling, parking and confidence.
Fuel Capacity
Fuel capacity helps estimate touring range and how often you may need to stop.
Brakes
Brake setup is worth comparing if you ride in traffic, mountains or with a passenger.
Suspension
Suspension details can matter for comfort, road feel and long-distance riding.
Transmission
Transmission and final drive affect maintenance, smoothness and everyday usability.
