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yamaha YZ250F

Back

Forward thinking

This is the bike that has totally revolutionised the 250 class. With its radical reverse cylinder head, rearward sloping cylinder and underseat fuel tank, the YZ250F is the way ahead for motocross design.

Shortly after its debut this bike took AMA 250 Supercross and Motocross titles, as well as a WMX world crown and multiple GP race wins. And to underline Yamaha's policy of continuous development, we've made a range of technical improvements designed to keep the YZ250F on top.

Featuring important new engine, transmission and chassis changes, the latest YZ250F is built to give even better performance and useability, making it the bike of choice for amateurs and pro riders.

Details

  • NEW - Lightweight piston and high-spec con rod
  • NEW - Crank and balancer design, ECU
  • NEW - Refined clutch and gear shifting
  • NEW - Refined suspension settings
  • NEW - Large diameter 270mm front brake
  • 250cc, liquid-cooled, DOHC, 4-valve engine
  • Reverse cylinder head with front-facing inlet
  • Mass centralised design for agile handling
  • Aluminum bilateral-beam frame
  • Air-Oil-Separate (AOS) upside-down front forks
  • Linked-type Monocross suspension
  • Grand Prix race-winning technology

Engine Type

Single cylinder, liquid-cooled, 4-stroke, DOHC, 4-valves

Displacement CC

250.0

Bore X Stroke

77.0 mm x 53.6 mm

Compression Ratio

13.5 : 1

Max Power Output

-

Max Torque

-

Oil Capacity

0.9 litres

Fuel Tank Capacity

7.5 litres

Starter

kick

Transmission Type

Constant mesh, 5-speed

Dimensions LxWxH

2,170x825x1,280 mm

Wheelbase

1,475 mm

Seat Height

965 mm

Ground Clearance

330 mm

Kerb Weight

105kg

Loaded Weight

105kg

Tyre Size Front

80/100-21 MS32

Tyre Size Rear

100/90-19 MS32

Brakes Type Front

Hydraulic single disc, Ø 270 mm

Brakes Type Rear

Hydraulic single disc, Ø 245 mm