yamaha YZ85


The YZ85 is a legend in the youth motocross scene. It’s the bike that inspired many of today’s top professional racers and helped them on their path to MX glory. And with its increased performance, the new YZ85 is the dirt bike that can turn young riders’ dreams into reality.

Victory. Never given, always earned

Its all-new 85cc liquid-cooled 2-stroke engine comes with a Yamaha Power Valve System (YPVS) that delivers a wider spread of explosive power giving genuine advantage over the competition.

And with fully adjustable forks, wave-type front and rear discs and adaptable ergonomics, the new YZ85 has the technology to launch riders all the way to the top.

At a glance

  • Fully adjustable 36-mm KYB® upside down front forks
  • Light and efficient large core radiator
  • New wave discs and brake hoses
  • Link-type Monocross rear suspension
  • New impact resistant fork guards
  • New aluminium swingarm for easy chain adjustment
  • 4-position adjustable tapered aluminium handlebars
  • Sharp styling and factory inspired graphics
  • Plastic resin reed valve and new expansion chamber
  • New 85cc liquid cooled 2-stroke engine with YPVS
  • Close ratio 6-speed transmission
  • Increased compression ratio of 8.2-9.6:1

Engine Type

Single cylinder, 2-stroke, liquid-cooled, reed valve

Displacement CC


Bore X Stroke

47.5 mm x 47.8 mm

Compression Ratio

8.1 : 1

Fuel Tank Capacity

5 L



Transmission Type

Constant Mesh, 6-speed

Dimensions LxWxH

1,903 mm x 758 mm x 1,156 mm


1,286 mm

Ground Clearance

393 mm

Kerb Weight

73 kg

Tyre Size Front

70/100-19 42M

Tyre Size Rear

90/100-16 52M

Brakes Type Front

Single Disc, 220 mm

Brakes Type Rear

Single Disc, 190 mm