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[[File:http://www.derbi.com/int/images/stories/motos/street/gpr1254t4v/3GPR125_L027.jpg]]
{{Infobox Motorcycle
{{Infobox Motorcycle
| name = GPR 125 Racing
| name = GPR 125 Racing
| image = [[File:http://www.derbi.com/int/images/stories/motos/street/gpr1254t4v/3GPR125_L027.jpg]]
| image =
| manufacturer = [[Derbi]]
| manufacturer = [[Derbi]]
| aka = Gillera SC125
| aka = Gillera SC125

Revision as of 14:54, 20 April 2011

GPR 125 Racing
File:Http://www.derbi.com/int/images/stories/motos/street/gpr1254t4v/3GPR125 L027.jpg
ManufacturerDerbi
Also calledGillera SC125
Parent companyPiaggio
Production2005–
ClassSport bike
Engine124.76 cc (7.613 cu in) liquid cooled, two stroke
Bore / stroke56.0 mm × 50.7 mm (2.20 in × 2.00 in)
Top speed90 mph (140 km/h)[1] According to certain reviews the top speed is estimated at 100 mph
Power15Bhp Restricted ,33Bhp Unrestricted [2]
Transmission6-speed
SuspensionØ40 mm upside-down fork. 110 mm. travel
Rear: Monoshock. 110 mm travel, Adjustable Preload
BrakesFront: Single 300 mm Hydraulic Disc with Four Piston Radial Caliper
Rear: Single 180 mm Disc with Two-Piston Caliper
TiresFront: 110/70-17
Rear: 140/70-17
WheelbaseTemplate:Auto in
DimensionsL: Template:Auto in
W: Template:Auto in
H: Template:Auto in
Weight225 lb (102 kg) (dry)
285 lb (129 kg) (wet)
Fuel capacity3.4 US gallons (13 L; 2.8 imp gal)
RelatedDerbi 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cylinder two-stroke engine with a steel lined cast iron cylinder manufactured by Yamaha, but this bike has now been superseded by an all-new DOHC four-stroke four valve model.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.