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Sport · 2004

GPR 50

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2004 Derbi GPR 50 Technical Analysis & Specification Breakdown

At the heart of the 2004 Derbi GPR 50 sport motorcycle, Derbi utilizes a 49.9 cc (3 cu in) liquid-cooled single cylinder, two-stroke layout. Internal engine geometry specifies a bore and stroke of 39.9 x 40.0 mm (1.6 x 1.6 inches) with a 13.0:1 compression ratio.

Rider ergonomics and chassis geometry center around a 1,303 mm (51.3 in) wheelbase engineered for quick, flickable steering geometry. The 7.25-liter (1.9 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.

Engine
Displacement 49.9 ccm (3.04 cubic inches)
Engine Type Single cylinder, two-stroke
Engine Details Single cylinder, two-stroke
Compression 13.0:1
Bore x Stroke 39.9 x 40.0 mm (1.6 x 1.6 inches)
Fuel System Carburettor
Cooling Liquid
Transmission
Gearbox 6-speed
Final Drive Chain (final drive)
Chassis
Front Suspension Inverted hydraulic fork, 35 mm
Front Travel 95 mm (3.7 inches)
Rear Suspension Progressive single absorber
Rear Travel 31 mm (1.2 inches)
Wheelbase 1303 mm (51.3 inches)
Wheels & Brakes
Front Tyre 90/80-17
Rear Tyre 110/80-17
Front Brakes Single disc
Front Brake Ø 260 mm (10.2 inches)
Rear Brakes Expanding brake (drum brake)
Rear Brake Ø 220 mm (8.7 inches)
Dimensions & Weight
Overall Height 1135 mm (44.7 inches)
Overall Length 1900 mm (74.8 inches)
Overall Width 670 mm (26.4 inches)
Fuel Capacity 7.25 litres (1.92 US gallons)
Other
Color Options Red/green/grey, Grey/green
More from Derbi
Buying Checklist

Before You Compare This Bike

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.

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.
Rider Profile

Who Is This Bike For?

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Sport & Track
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