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Technical Overview
2007 Derbi GP1 Open 50 Technical Analysis & Specification Breakdown
At the heart of the 2007 Derbi GP1 Open 50 scooter motorcycle, Derbi relies on a 49.4 cc (3 cu in) liquid-cooled single cylinder, two-stroke powerplant. 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.
Rider ergonomics and chassis geometry center around a 785 mm (30.9 in) seat height — offering a neutral standover height that accommodates most average-inseam riders without sacrificing cornering clearance. The 11-liter (2.9 US gal) fuel tank supports practical everyday commuting and weekend road stints.
Standover Height
785 mm (30.9 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. Del´Orto 17.5 mm
CoolingLiquid
Transmission
ClutchAutomatic
Chassis
Front SuspensionUpside down hydraulic fork
Front Travel80 mm (3.1 inches)
Rear SuspensionMonoshock
Rear Travel70 mm (2.8 inches)
Wheels & Brakes
Front Tyre120/70-14
Rear Tyre130/60-13
Front BrakesSingle disc
Front Brake Ø190 mm (7.5 inches)
Rear BrakesExpanding brake (drum brake)
Rear Brake Ø175 mm (6.9 inches)
Dimensions & Weight
Seat Height785 mm (30.9 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.
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.
