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Ohvale GP-5 250cc 4-Stroke ZS RR250

Ohvale-GP-5-ZS

Ohvale GP-5 250cc 4-stroke equipped with the 249.8cc ZS RR250 engine, DOHC 4-valve cylinder head, Dell'Orto electronic fuel injection with 46 mm throttle body and Dell'Orto ECU. Aluminium perimeter frame, adjustable OHRACING suspension, twin front discs with Brembo GP4-Mini caliper and 15” wheels with Pirelli Diablo Superbike tyres.

€10,370.00
Quantity
AVAILABLE TO ORDER - CONTACT US FOR MORE INFO

Description

The Ohvale GP-5 250cc 4-stroke with ZS RR250 engine is a MiniGP developed for track use, combining an advanced chassis with high-level racing components.

This version of the GP-5 is powered by the ZS RR250, a 249.8cc liquid-cooled, 4-stroke single-cylinder engine featuring a DOHC double overhead camshaft and 4-valve configuration.

The engine has a 13.4:1 compression ratio, with a bore of 78 mm and a stroke of 52.3 mm.

Fuel is supplied through Dell'Orto electronic fuel injection with a 46 mm throttle body, while ignition management is handled by a Dell'Orto ECU. Electric starting is standard.

The transmission features a 5-speed gearbox with a standard 18-36 final drive ratio and #420 chain. An upshift quickshifter is available as an option.

The GP-5 features a hydraulically operated wet multi-plate clutch, while an STM slipper clutch is available as an option.

Twin-silencer Arrow exhaust

The standard configuration features a dedicated Arrow exhaust system with twin silencers and DB Killers.

A dedicated Akrapovič exhaust system with twin silencers and DB Killers is available as an option.

Aluminium chassis and OHRACING suspension

The GP-5 features an aluminium perimeter frame.

At the front, fully adjustable OHRACING Ø35 mm upside-down forks provide adjustment for spring preload, compression damping and rebound damping.

At the rear, an aluminium swingarm with linkage is combined with an OHRACING rear shock, adjustable for spring preload, compression and rebound damping.

An Öhlins TTX rear shock is available as an option.

An adjustable OHRACING steering damper is also available as an option.

Brembo braking system

The front braking system features twin Ø240 mm brake discs, a Brembo GP4-Mini radial caliper with four Ø24 mm pistons, and a Brembo 15 RCS radial master cylinder.

At the rear, the GP-5 features a Ø190 mm disc, a Brembo caliper with two Ø32 mm pistons, and a Brembo master cylinder with integrated reservoir.

15” wheels and Pirelli Diablo Superbike tyres

The GP-5 is equipped with 15-inch aluminium wheels:

  • Front: 15” x MT2.75
  • Rear: 15” x MT3.50

Tyres are Pirelli Diablo Superbike:

  • Front: 100/70 R15
  • Rear: 120/70 R15

Dashboard

A Standard Dashboard is fitted as standard.

The AiM MXq dashboard is available as an option.


Technical specifications

Engine

  • Engine: ZS RR250
  • Configuration: 4-stroke single-cylinder
  • Valves: 4
  • Cooling: Liquid cooled
  • Valve train: DOHC
  • Displacement: 249.8cc
  • Bore x stroke: 78 x 52.3 mm
  • Compression ratio: 13.4:1
  • Fuel system: Dell'Orto electronic fuel injection
  • Throttle body: 46 mm
  • Ignition: Dell'Orto ECU
  • Starter: Electric

Exhaust

  • Dedicated Arrow exhaust system
  • Twin silencers
  • DB Killers
  • Optional: dedicated Akrapovič twin-silencer exhaust with DB Killers

Transmission

  • Gearbox: 5-speed
  • Quickshifter: optional
  • Optional quickshifter: upshift
  • Standard final drive ratio: 18-36
  • Chain: #420

Clutch

  • Wet multi-plate clutch
  • Hydraulic operation
  • Optional: STM slipper clutch

Frame

  • Aluminium perimeter frame

Front suspension

  • OHRACING Ø35 mm upside-down forks
  • Fully adjustable
  • Adjustable spring preload
  • Adjustable compression damping
  • Adjustable rebound damping

Rear suspension

  • Aluminium swingarm with linkage
  • OHRACING rear shock
  • Adjustable spring preload
  • Adjustable compression damping
  • Adjustable rebound damping
  • Optional: Öhlins TTX rear shock

Steering damper

  • Optional: adjustable OHRACING steering damper

Front braking system

  • Twin Ø240 mm discs
  • Brembo GP4-Mini radial caliper
  • 4 x Ø24 mm pistons
  • Brembo 15 RCS radial master cylinder

Rear braking system

  • Ø190 mm disc
  • Brembo caliper
  • 2 x Ø32 mm pistons
  • Brembo master cylinder with integrated reservoir

Front wheel and tyre

  • Aluminium wheel: 15” x MT2.75
  • Tyre: Pirelli Diablo Superbike 100/70 R15

Rear wheel and tyre

  • Aluminium wheel: 15” x MT3.50
  • Tyre: Pirelli Diablo Superbike 120/70 R15

Dashboard

  • Standard Dashboard
  • Optional: AiM MXq

Available options

  • Upshift quickshifter
  • Akrapovič twin-silencer exhaust with DB Killers
  • STM slipper clutch
  • Öhlins TTX rear shock
  • Adjustable OHRACING steering damper
  • AiM MXq dashboard
Product Details
Ohvale-GP-5-ZS

Data sheet

Application
Ohvale
Engine type
4 stroke
Inch diameter
15
Displacement
250 cc
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