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Scooters

2009Derbi GP1 50 Open

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The 2009 Derbi GP1 50 Open is an entry-level 50cc scooter ideal for novice riders and urban commuters seeking affordable, practical transportation. Powered by a liquid-cooled single-cylinder engine with automatic transmission, it delivers reliable performance for city riding. The GP1 50 is best known for its accessible price point and dependable everyday usability.

Capacity
49.4 ccm
Engine
Single
Gearbox
Not on record
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Dry weight
103.0 kg
Seat height
785 mm
Power
5.4 HP (4.0 kW)
⇄ Compare with another bike + Add to garage All model years

What’s new for the 2009 Derbi GP1 50 Open

vs the 2008
Spec20082009
Seat height 810 mm (31.9 inches) 785 mm (30.9 inches)
Front suspension 37 hydraulic fork. 130 mm travel 32 mm upside down hydraulic fork.
Rear suspension Monoshock. 70 mm travel Monoshock.
Other years 2008 2009

How it rides

Editorial estimate from the spec sheet - not lab tested
Speed 25Agility 78Comfort 55Off-road 5Touring 25Road manners 65
Off-road & trail5%
Cornering60%
City riding88%
Daily riding80%
Touring25%
Two-up40%
Track15%
Best for
Built as a sporty urban commuter scooter, designed for weaving through city traffic and short hops rather than long-distance travel.
Built for
A youthful, sporty-styled scooter with premium touches like an upside-down front fork, giving it a more aggressive feel than typical commuter scooters.
Not ideal for
Not suitable for riders wanting sustained highway speeds, long touring distances, or off-road capability.

Scores are derived from the spec sheet using the same model across every bike, so they compare like for like.

Will it fit you?

Worked out in your browser - nothing is sent to us
At 785mm, a rider of 68.9" with a 31" (estimated) inseam will reach the ground with both feet flat on the 2009 Derbi GP1 50 Open, with a moderate knee angle of around 100 degrees and a slightly forward riding position.

Assumes about 30mm of suspension sag once seated. This is an approximation from category-typical geometry, not a measurement of this bike or of you - sit on one before you buy.

More bikes at 751-820 mm — Middle Ground →

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Full specifications

Engine
Capacity
49.4 ccm
Power
5.4 HP (4.0 kW)
Engine type
Single
Power/weight ratio
0.0524 HP/kg (dry)
Bore x stroke
40.0 x 39.3 mm
Compression
10.5:1
Cooling system
Liquid
Fuel system
Carburettor
Starting
Electric
Ignition
CDI
Lubrication system
Separate mixing with mechanical oil pump
Transmission
Transmission type
Automatic
Final drive
Belt
Clutch
Automated
Dimensions & weight
Wheelbase
1330 mm
Overall length
1850 mm
Overall width
650 mm
Overall height
1175 mm
Seat height
785 mm
Dry weight
103.0 kg
Fuel capacity
11.00 litres
Oil capacity
1.50 litres
Chassis & suspension
Front suspension
32 mm upside down hydraulic fork.
Rear suspension
Monoshock.
Front wheel travel
80 mm
Rear wheel travel
70 mm
Brakes & wheels
Front brakes
Single disc
Front brakes diameter
190 mm
Rear brakes
Single disc
Rear brakes diameter
175 mm
Front tyre
120/70-14
Rear tyre
140/60-13
Other
Color options
Black/yellow/green/red

Compiled from manufacturer documentation and user contributions, corrected on an ongoing basis. Spotted something wrong? Tell us.

What changed, year to year

Differences highlighted
Specification 20082009
Capacity 49 cc 49 cc
Dry weight 103 kg 103 kg
Seat height 810 mm 785 mm
Fuel capacity 11 L 11 L

Illustrative - generated automatically by diffing the year records already on file, not a manufacturer-published changelog.

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Common questions

What is the engine size of the Derbi GP1 50 Open?

The 2009 Derbi GP1 50 Open has a Capacity of 49.4 ccm (3.01 cubic inches).

What engine power does the Derbi GP1 50 Open have?

The 2009 Derbi GP1 50 Open has a Power of 5.4 HP (4.0 kW).

How much does the Derbi GP1 50 Open weigh?

The 2009 Derbi GP1 50 Open has a Dry weight of 103.0 kg (227.1 pounds).

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