Derbi GPR50: history, specs, pictures

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Derbi GPR50

The Derbi GPR50 was a single cylinder, two-stroke sport motorcycle produced between 2003 and 2015. Max torque was 4.35 ft/lbs (5.9 Nm) @ 9000 RPM. Claimed horsepower was 8.31 HP (6.2 KW) @ 10000 RPM.

Engine[edit | edit source]

The engine was a liquid cooled single cylinder, two-stroke. A 40.0mm bore x 39.3mm stroke result in a displacement of just 49.4 cubic centimeters. The engine featured a 10.5:1 compression ratio. Fuel was supplied via a single overhead cams (SOHC).

Drive[edit | edit source]

The bike has a 6-speed transmission. The final drive was via chain. Power was moderated via the automated twist and go.

Chassis[edit | edit source]

It came with a 100/80-17 front tire and a 130/70-17 rear tire. Stopping was achieved via single disc in the front and a single disc. single piston in the rear. The front suspension was a 41 mm upsidedown fork while the rear was equipped with a asymmetric swing arm. monoshock. The GPR50 was fitted with a 3.43 Gallon (13.00 Liters) fuel tank. The bike weighed just 242.51 pounds (110.0 Kg). The wheelbase was 53.54 inches (1360 mm) long.

In Media[edit | edit source]

Derbi-GPR50.jpg
Derbi GPR50
Manufacturer
Also called GPR50R Race Replica, GPR 50 R Race Replica, GPR50 Racing Replica, GPR 50 Racing Replica, GPR80 Cup, GPR 80 Cup, GPR50 Replica Malossi, GPR 50 Replica Malossi, GPR Racing 50, GPR Nude 50, GPR Racing 50 Race Replica, GPR50 Racing Replica Di Meglio, GPR 50 Racing Replica Di Meglio, GPR50 Racing Race Replica, GPR 50 Racing Race Replica, GPR50 Racing, GPR 50 Racing, GPR50 Nude, GPR 50 Nude, GPR502T, GPR 50 2T, GPR 50, GPR50R, GPR 50 R
Production 2003 - 2015
Engine
single cylinder, two-stroke
Bore / Stroke 40.0mm x 39.3mm
Horsepower 8.31 HP (6.2 KW) @ 10000RPM
Torque 4.35 ft/lbs (5.9 Nm) @ 9000RPM
Fuel System carburetor. 17.5 mm
Ignition electronic c.d.i.
Transmission Gear box: 6-speed

Final Drive: chain

Clutch: automated twist and go
Suspension Front: 41 mm upsidedown fork
Rear: asymmetric swing arm. monoshock.
Brakes Front: single disc
Rear: single disc. single piston
Front Tire 100/80-17
Rear Tire 130/70-17
Wheelbase 53.54 inches (1360 mm)
Length 79.33 inches (2015 mm)
Width 28.35 inches (720 mm)
Height 43.94 inches (1116 mm)
Seat Height 31.89 inches (810 mm)
Weight 242.51 pounds (110.0 Kg) (dry), 121.0 kg (wet)
Oil Capacity 0.4 Gallon (1.50 Liters)
Fuel Capacity 3.43 Gallon (13.00 Liters)
Manuals Service Manual


The Derbi GPR50 was a single cylinder, two-stroke standard produced by Derbi between 2003 and 2015. Max torque was 4.35 ft/lbs (5.9 Nm) @ 9000 RPM. Claimed horsepower was 8.31 HP (6.2 KW) @ 10000 RPM.

Engine[edit | edit source]

The engine was a liquid cooled single cylinder, two-stroke. A 40.0mm bore x 39.3mm stroke result in a displacement of just 49.4 cubic centimeters. Fuel was supplied via a single overhead cams (sohc).

Drive[edit | edit source]

The bike has a 6-speed transmission. Power was moderated via the automated twist and go.

Chassis[edit | edit source]

It came with a 100/80-17 front tire and a 130/70-17 rear tire. Stopping was achieved via single disc in the front and a single disc. single piston in the rear. The front suspension was a 41 mm upsidedown fork while the rear was equipped with a asymmetric swing arm. monoshock.. The GPR50 was fitted with a 3.43 Gallon (13.00 Liters) fuel tank. The bike weighed just 242.51 pounds (110.0 Kg). The wheelbase was 53.54 inches (1360 mm) long.

In Media[edit | edit source]