2017 Yamaha YZ85


2017 Yamaha YZ85


The mini race bike of choice for future champions. High performance, two-stroke engine, six-speeds, top shelf suspension, light and nimble.

Additional Features

  • SMART RIDER ERGONOMICS: Wide handlebar and flat fuel tank, radiator shrouds, side panels and rear fender provide rider with leverage and freedom of movement and weight transfer.
  • GRIPPY FOOTPEGS: Wide foot pegs provide superb comfort and grip.
  • SIMPLIFIED SERVICING: Separate clutch cover with transmission oil filler opening makes for easy maintenance.
  • FUEL TANK DESIGN: Fuel tank cap is wider for easier usage, and large tank opening ensures fast, hassle-free refueling.

Chassis / Suspension

  • LIGHTWEIGHT SUBFRAME: Rear subframe is removable to allow easy maintenance.
  • FULL-ADJUSTABLE FORK: Lightweight 36mm KYB® inverted cartridge fork features 10.8 inches of travel with compression and rebound damping adjustability, and low-friction outer tubes and internals.
  • FULLY ADJUSTABLE SHOCK: Rear suspension features fully adjustable Kayaba® link-type shock with 11.1 inches of travel and race-tested compression damping valving.
  • HIGH PERFORMANCE BRAKES: 220mm front disc and 190mm rear disc brakes with stainless steel rotors deliver strong, precise stopping power.
  • LIGHTWEIGHT WHEELS: Lightweight 17-inch front and 14-inch rear rims are durable and reduce unsprung weight for optimal suspension performance.
  • RACE-READY TIRES: Dunlop® knobbies provide great traction on a variety of tracks and terrain.


  • COMPACT, POWERFUL TWO-STROKE: 85cc liquid-cooled, crankcase reed-valve-inducted, two-stroke engine inhales through a 28mm Keihin® flat-slide carburetor; seamless throttle response across the powerband is the result.
  • RELIABLE CLUTCH DESIGN: Involute spline set-up in clutch means smoother shifting under power with great durability at competition-level usage. A two-piece clutch cover provides easy access during maintenance.
  • HIGH CAPACITY RADIATOR: Lightweight radiator has large cores and louvers, and the water pump features a cast aluminum (vs. resin) impeller for maximum cooling efficiency.
  • RACE-TUNED EXHAUST: Lightweight exhaust system design helps create a broader powerband with stronger low-end punch.
  • HIGH-FLOW AIRBOX: Airbox design ensures greater air cleaning performance and easier maintenance.

Top Features

  • MODERN STYLING: Aggressive, modern styling includes the front fender, number plate, radiator shroud and side number plates.
  • ADJUSTABLE CONTROLS: Clutch lever reach adjuster to accommodate smaller hands for younger riders.
  • COMPACT TWO-STROKE POWERPLANT: Liquid-cooled, 85cc crankcase reed-valve-inducted six-speed is light, compact and designed to deliver hard-hitting, moto-winning power throughout the rpm range.
  • CLOSE-RATIO TRANSMISSION: Smooth-shifting, six-speed close-ratio transmission with heavy duty multiplate clutch delivers maximum hookup for outstanding acceleration and corner-exiting power.
  • STRONG, COMPACT FRAME: Ultra-rigid, single-backbone, semi-double-cradle frame is lightweight and strong for sharp handling.
  • RACE-READY SUSPENSION: Fully adjustable suspension allows a broad adjustment range to suit everybody from rank novice to mini expert.

General Information

Manufacturer Yamaha
Model Year 2017
Model YZ85
Model Code YZ85H
Stock Number C2440
Color Team Yamaha Blue



Front - 220 mm hydraulic single disc

Rear - 190 mm hydraulic single disc


Front - 70/100-17 Dunlop®

Rear - 90/100-14 Dunlop®


Length 71.7 in.
Height 44.3 in.
Width 29.9 in.
Weight Wet - 157 lbs.
Ground Clearance 13 in.
Wheelbase 49.5 in.
Seat Height 33.1 in.


Transmission Constant-mesh; 6-speed
Final Drive Chain


Engine Reed-valve inducted, 2-stroke
Displacement 85cc
Bore x Stroke 47.5 x 47.8 mm
Compression Ratio 8.1:1
Carburetion Keihin® PWK 28
Fuel Capacity 1.3 gal.
Ignition CDI
Clutch Multi-plate wet
Cooling Liquid



Front - Inverted fork; fully adjustable; 10.8 in. travel

Rear - Single shock; fully adjustable; 11.1 in. travel

Rake 26.2°
Trail 3.5 in.