Derbi GPR 80 Cup
2005Concept

Derbi GPR 80 Cup

Key specifications

Engine
49 cc
Fuel type
petrol
Transmission
6-speed
Front brakes
Single disc
Rear brakes
Single disc

Overview

Introducing the 2005 Derbi GPR 80 Cup, a remarkable prototype-concept model that embodies the essence of lightweight performance and exhilarating speed. Designed for the youth racing scene, this motorcycle is not just a mean machine; it’s a gateway to the world of competitive motorsport. With its sleek styling reminiscent of full-sized race bikes, the GPR 80 Cup captures the attention of aspiring riders and enthusiasts alike, establishing itself as a formidable entry point into the thrilling realm of two-stroke racing. At the heart of the GPR 80 Cup lies a potent 49cc single-cylinder, two-stroke engine that delivers an impressive punch. With a compression ratio of 11.5:1, this machine is engineered for exhilarating acceleration and nimble handling. The Dellorto PHVA 14 carburettor ensures precise fuel delivery, while the CDI ignition system guarantees reliable starts and consistent performance. Riders can take full advantage of the 6-speed gearbox, allowing them to maximize power delivery through the gears on both the straightaways and twisty tracks. The liquid cooling system effectively maintains optimal temperatures, ensuring that the GPR remains spirited and responsive throughout intense rides. The 2005 GPR 80 Cup is packed with features that set it apart from its peers. Its robust chassis is complemented by an inverted front fork and a monoshock rear suspension, providing exceptional stability and comfort over varied terrains. Stopping power is equally impressive, thanks to the 300 mm front disc brake and 180 mm rear disc brake, which offer precise braking performance for confident maneuvering. Additionally, the electric starter adds convenience, allowing riders to jump into action quickly without the hassle of kick-starting. This combination of advanced features and technology makes the GPR 80 Cup a standout choice for younger riders looking to make their mark on the track. **

Pros

  • Lightweight and Agile: With its compact design and low weight, the GPR 80 Cup is incredibly nimble, making it perfect for tight corners and quick maneuvers on the track.
  • Powerful Performance: The two-stroke engine provides exhilarating acceleration, ensuring that riders can keep up with or outpace competitors in youth racing categories.
  • Advanced Suspension and Braking: The combination of inverted front forks and strong disc brakes offers superior handling and stopping power, enhancing overall ride confidence.

Cons

  • Limited Engine Displacement: At just 49cc, the GPR 80 Cup is restricted to specific racing classes, which may limit its versatility for riders looking to transition to larger displacement motorcycles.
  • Two-Stroke Maintenance: The two-stroke engine requires more regular maintenance and care compared to four-stroke engines, which could be a consideration for novice riders.
  • Prototype Status: As a concept model, parts availability and support may be limited, posing challenges for long-term ownership and maintenance.

Technical details

Source specification data

Make
Derbi
Model
GPR 80 Cup
Category
Prototype-concept model
Starter
Electric
Gearbox
6-speed
Ignition
CDI
Fuel System
Carburettor. Dellorto PHVA 14
Compression
11.5:1
Displacement
49.00 ccm (2.99 cubic inches)
Cooling System
Liquid
Engine Details
Single cylinder, two-stroke
Transmission Type Final Drive
Chain
Rear Tyre
130/70-17
Front Tyre
110/80-17
Rear Brakes
Single disc
Front Brakes
Single disc
Rear Suspension
Monoshock
Front Suspension
Inverted Fork
Rear Brakes Diameter
180 mm (7.1 inches)
Front Brakes Diameter
300 mm (11.8 inches)