Yamaha YZ65

Production years: 2020–2027
Brand: Yamaha

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YAMAHA YZ65 (2025-Present)

Selected year: 2027

Technical specifications

Engine capacity: 65 cm³
Wet weight: 60.8 kg
Seat height: 754 mm

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Overview

The Yamaha YZ65 is a motocross bike produced from 2020 through 2027. The 2027 model uses a 65.0 cm³ liquid-cooled, single-cylinder two-stroke engine and weighs 60.8 kg wet.

Its 754 mm seat height is 5 mm higher than the 2021 model’s, while the 265 mm ground clearance and 216 mm front and 269 mm rear wheel travel suit uneven terrain. Fully adjustable KYB® front and rear suspension lets riders tune the setup, and the 3.40-liter fuel tank has limited capacity for longer sessions between refueling stops.

Specifications

Engine

Bore x stroke: 43.5 x 43.6 mm
Engine capacity: 65 cm³
Compression ratio: 9.6:1
Cooling system: Liquid
Engine type: Single, two-stroke
Fuel system: Carburettor
Ignition: CDI

Performance and transmission

Clutch: Wet, multiple-disc coil spring
Final drive: Chain
Gearbox: Manual 6-speed
Transmission type: Manual

Dimensions and weight

Fuel capacity: 3.4 L
Ground clearance: 265 mm
Overall height: 1,000 mm
Overall length: 1,615 mm
Overall width: 760 mm
Seat height: 754 mm
Wet weight: 60.8 kg
Wheelbase: 1,140 mm

Chassis and suspension

Frame: Steel
Front suspension: KYB® inverted fork; fully adjustable
Front wheel travel: 216 mm
Rake: 26.4°
Rear suspension: KYB® single shock; fully adjustable
Rear wheel travel: 269 mm
Trail: 64 mm

Brakes and wheels

Front brakes: Single disc. Hydraulic
Front brakes diameter: 198 mm
Front tyre: 60/100-14
Rear brakes: Single disc. Hydraulic.
Rear tyre: 80/100-12

Model years

2022

Seat height: 749 mm → 754 mm

Specification
Engine capacity	65 cm³	65 cm³	65 cm³	65 cm³	65 cm³	65 cm³
Wet weight	60.8 kg	60.8 kg	60.8 kg	60.8 kg	60.8 kg	60.8 kg
Seat height	754 mm	754 mm	754 mm	754 mm	754 mm	754 mm
Fuel capacity	3.4 L	3.4 L	3.4 L	3.4 L	3.4 L	3.4 L

Pros and cons

Advantages

Low wet weight
At 60.8 kg wet, the YZ65 is light to maneuver when negotiating tight turns or handling the bike off the track.
Adjustable suspension
Fully adjustable KYB® front and rear suspension gives riders scope to tailor the setup to track conditions.
Ground clearance
The 265 mm ground clearance helps the bike clear uneven ground and obstacles.

Things to consider

Small fuel tank
The 3.40-liter tank means refueling can come around quickly during longer riding sessions.
Chain maintenance
The chain final drive needs regular cleaning and lubrication.

Rider fit

Rider fit calculator

Calculated in your browser

Seat height: 754 mmInseam 78.9 cm

Seat height: 754 mm

Your height

Inside leg lengthOptional

Don't know it? Leave this empty and we'll estimate it from your height.

Estimated from your height: 79 cm

How to measure

Stand barefoot with your back to a wall. Hold a book firmly between your legs, then measure from the floor to the top edge of the book.

Estimated ground reach

Both feet likely flat

You should have a stable stance at a stop, although seat width and suspension setup still matter.

Seat height

754 mm

Approx. loaded height

724 mm

Estimate assumes about 30 mm of suspension sag. Seat width, footwear, luggage and suspension settings can change real reach. Always sit on the motorcycle before buying.