Derbi GPR125

GPR 125 Racing

Manufacturer	Derbi
Also called	Gillera SC125
Parent company	Piaggio
Production	2005–
Class	Sport bike
Engine	124.76 cc (7.613 cu in) liquid cooled, two stroke
Bore / stroke	56.0 mm × 50.7 mm (2.20 in × 2.00 in)
Transmission	6-speed
Suspension	Ø40 mm upside-down fork. 110 mm. travel Rear: Monoshock. 110 mm travel, Adjustable Preload
Brakes	Front: Single 300 mm Hydraulic Disc with Four Piston Radial Caliper Rear: Single 180 mm Disc with Two-Piston Caliper
Tires	Front: 110/70-17 Rear: 140/70-17
Wheelbase	53.34 in (1,355 mm)
Dimensions	L: 79.68 in (2,024 mm) W: 28.34 in (720 mm) H: 45.66 in (1,160 mm)
Weight	225 lb (102 kg) (dry) 285 lb (129 kg) (wet)
Fuel capacity	3.4 US gallons (13 L; 2.8 imp gal)
Related	Derbi GPR 125 Nude, Derbi GPR 50 Racing & Nude, Gilera SC 125 & Moto 125sc

The Derbi GPR 125 is a street motorcycle sold by Derbi - Nacional Motor since 2005. The original GPR125 was powered by a single-cylinder two-stroke engine with a steel lined cast iron cylinder manufactured by Yamaha, but this bike has now been superseded by an all-new DOHC four-stroke four-valve model.

Two-stroke GPR125

The engine in the original two-stroke model is sourced from Yamaha. This engine was used in the Yamaha DTR125 Dual Sport and TZR125 sport bike. Engine parts from these two bikes will directly swap with the Derbi. It uses the Yamaha Yamaha Power Valve System, a two-stroke power valve system, which consists of a rotary valve located in the exhaust port which changes the exhaust port timing and area. The power valve is controlled by an ECU and servo motor.

External links

• Official website