2025 Yamaha YZ85 Base

2025 Yamaha YZ85 Base

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  • Year 2025
  • Make Yamaha
  • Model YZ85
2025 Yamaha YZ85 Base

2025 Yamaha YZ85 Base

2025 Yamaha YZ85

VICTORY: NEVER GIVEN, ALWAYS EARNED

Built for fun. Built to win. The renowned YZ85 serves up big-bike specs in a small-bike package.

Features may include:

TOP FEATURES

YPVS™ Two-Stroke Power

The 85cc liquid-cooled, two-stroke engine features the Yamaha Power Valve System (YPVS™) for increased low- and mid-range power without losing peak power at high rpms, reducing the need for frequent shifting.

Fully-Adjustable Suspension

Lightweight 36mm KYB® inverted cartridge fork features low-friction outer tubes, external compression and rebound damping adjustability, paired with a race-proven fully-adjustable KYB® rear shock. Both offer loads of suspension travel to tackle serious off-road competition.

Optimized Chassis Design

Built for demanding junior racers, the YZ85's chassis is optimized for strength, rigidity and overall handling stability. The aluminum swingarm offers refined balance between longitudinal and torsional rigidity, and the removable rear subframe constructed from lightweight, high-strength aluminum reduces weight.

ENGINE

Potent YPVS™ Two-Stroke Engine

The 85cc liquid-cooled, two-stroke engine features the Yamaha Power Valve System (YPVS™) for broad power across the rev range without losing peak power at high rpms, reducing the need for frequent shifting.

Tuned Crankcase & Intake

The crankcase design features a spacer-style reed valve intake for improved air/fuel flow, which inhales through a 28mm Hitachi Astemo® Keihin flat-slide carburetor for seamless throttle response.

Tuned Expansion Chamber

Carefully matched to suit the YPVS™-equipped engine, the exhaust expansion chamber optimizes gas flow for enhanced power delivery, especially in the low- and mid-range.

CHASSIS/SUSPENSION

Fully-Adjustable Fork

The lightweight 36mm KYB® inverted cartridge fork features 10.8 inches of travel with compression and rebound damping adjustability. Complete with low-friction outer tubes and internals, the damping settings offer enhanced performance across a range of conditions and rider abilities.

Fully-Adjustable Shock

Rear suspension features fully adjustable KYB® link-type shock with race-tested valving and 11.1 inches of travel. The progressive linkage-type design improves bottoming resistance, allowing racers to charge harder and improve lap times.

Optimized Chassis Design

Built for demanding junior racers, the YZ85's chassis is optimized for strength, rigidity and overall handling stability. The aluminum swingarm offers refined balance between longitudinal and torsional rigidity, and the removable rear subframe constructed from lightweight, high-strength aluminum reduces weight.

ADDITIONAL FEATURES

Adjustable Rider Ergonomics

The four-position adjustable handlebar mounts and taper-style handlebar allow the rider to tune the handlebar position to suit their size and preferences. Flat seat and narrow fuel tank design, along with smoothly integrated body panels and slim shroud width, combine to enable greater freedom of movement for increased control and confidence.

Engine

Engine Type 2-stroke; reed-valve inducted
Displacement 85cc
Cooling System liquid-cooled
Bore 47.5mm
Stroke 47.8mm
Compression Ratio 8.2~9.6:1
Fuel System Hitachi Astemo® Keihin PWK28 carburetor

Drivetrain

Transmission 6-speed; multiplate wet clutch
Final Drive Chain

Suspension

Front Suspension KYB® inverted fork; fully adjustable, 10.8-in travel
Rear Suspension KYB® single shock; fully adjustable, 11.1-in travel
Front Travel (in./cm.) 10.8-in travel
Rear Travel (in./cm.) 11.1-in travel

Brakes

Front braking system Hydraulic disc, 220mm
Rear braking system Hydraulic disc, 190mm

Wheels & Tires

Front Tire 70/100-17 Dunlop® Geomax MX3SF
Rear Tire 90/100-14 Dunlop® Geomax MX3S

Dimensions

Wheelbase 49.4 in
Seat Height 33.1 in
Rake/trail 26.3°/3.5 in
Ground Clearance 12.6 in
Overall Vehicle Size (LxWxH) 71.7 in x 29.9 in x 44.7 in

Capacities

Fuel Capacity 1.3 gal

Weights

Weight 161 lbs

Warranty

Warranty 30 Day (Limited Factory Warranty)

Product Photography