What category is the 2021 Yamaha YZ65?

The 2021 Yamaha YZ65 has a Category of Enduro / offroad.

What is the engine size of the 2021 Yamaha YZ65?

The 2021 Yamaha YZ65 has a Capacity: of 65.0 ccm (3.97 cubic inches).

What type of engine does the 2021 Yamaha YZ65 have?

The 2021 Yamaha YZ65 has a Engine type of Single cylinder, two-stroke.

Is the 2021 Yamaha YZ65 air cooled or liquid cooled?

The 2021 Yamaha YZ65 has a Cooling system of Liquid.

How many gears does the 2021 Yamaha YZ65 have?

The 2021 Yamaha YZ65 has a Gearbox of 6-speed.

How much does the 2021 Yamaha YZ65 weigh?

The 2021 Yamaha YZ65 has a Weight incl. oil, gas, etc of 60.8 kg (134.0 pounds).

What is the seat height of the 2021 Yamaha YZ65?

The 2021 Yamaha YZ65 has a Seat height of 749 mm (29.5 inches) If adjustable, lowest setting..

Yamaha YZ65 - 2021 Specifications and Reviews

Name: 2021 Yamaha YZ65
Brand: Yamaha

The 2021 Yamaha YZ65 is a lightweight 65cc two-stroke dirt bike designed for young riders entering competitive motocross. Known for its responsive handling and nimble agility, it features a liquid-cooled engine and 6-speed transmission that delivers plenty of power for its class. Best suited for junior racers and aspiring motocrossers seeking an affordable, reliable platform for learning fundamental riding skills.

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2021

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General information
Category	Enduro / offroad
Year	2021
Model	Yamaha YZ65
Engine and Transmission Specifications
Clutch	Wet, multiple-disc coil spring
Transmission type	Chain (final drive)
Gearbox	6-speed
Cooling system	Liquid
Ignition	CDI
Fuel system	Carburettor. Keihin PWK28
Bore x Stroke	43.5 x 43.6 mm (1.7 x 1.7 inches)
Compression	9.1:1
Engine type	Single cylinder, two-stroke
Capacity:	65.0 ccm (3.97 cubic inches)
Brakes, suspension, Frame and wheels
Wheels	MaxxisÂ® Maxxcross SI tires
Rear brakes	Single disc. Hydraulic.
Diameter	198 mm (7.8 inches)
Front brakes	Single disc. Hydraulic
Rear tire	80/100-12
Front tire	60/100-14
Rear wheel travel	269 mm (10.6 inches)
Rear Suspension	Single shock, adjustable compression and rebound damping
Front wheel travel	216 mm (8.5 inches)
Front Suspension	36mm KYBÂ® coil spring, adjustable compression and rebound damping;
Trail	64 mm (2.5 inches)
Rake (fork angle)	26.4°
Frame type	Steel

Physical measures and capacities
Fuel capacity	3.41 litres (0.90 US gallons)
Wheelbase	1143 mm (45.0 inches)
Ground clearance	267 mm (10.5 inches)
Overall width	762 mm (30.0 inches)
Overall length	1613 mm (63.5 inches)
Overall height	1003 mm (39.5 inches)
Seat height	749 mm (29.5 inches) If adjustable, lowest setting.
Weight incl. oil, gas, etc	60.8 kg (134.0 pounds)
Other specs
Maintenance	Find parts, fluids, filters, maintenance tools and service items on eBay
Factory warranty	30 Day Limited Factory Warranty
Color options	Yamaha Blue

Performance Profile & Rider Fit

Best For

Track85%

City5%

Cornering88%

Daily Riding10%

Touring5%

Passenger0%

Rider Profile

Best For	This is a youth-focused competition motocross bike built for developing riders, typically kids transitioning from an 85cc up through to a full-size bike, not adult beginners or general road riders.
Purpose	It exists purely for motocross track and off-road competition, designed to teach race craft, throttle control, and clutch/gear management on a 2-stroke.
Rider Fit	Its tiny 134 lb wet weight, low 29.7 in seat height, and compact dimensions are tailored to smaller, lighter junior riders rather than full-grown adults.
Character	Expect a peaky, high-revving 2-stroke power delivery that rewards aggressive clutch work and precise shifting, paired with featherweight agility ideal for tight track sections and jumps.
Not Ideal For	This bike is not suitable for adult commuting, highway travel, two-up riding, or any road use since it is an unregistered, off-road-only youth race machine.

Character map is an editorial estimate based on this bike's specifications, not a lab-tested measurement.

Rider Fit Visualizer

2021 Yamaha YZ65 Rider Ergonomics Assessment

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Feet:

At 749mm, a rider of 175cm with a 79cm (estimated) inseam will reach the ground with both feet flat on the 2021 Yamaha YZ65, with a cramped knee angle of around 65 degrees and an upright riding position.

Data quality: measured. Assumes about 30mm of suspension sag once seated (a typical street-bike rule of thumb - stiffer or softer suspension will vary). This is an approximation from category-typical geometry and generic body proportions, not a measurement of this specific bike or you - sit on it before you buy.

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Rider Reviews

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MotorcycleDB Review

The 2021 Yamaha YZ65 is an impressive addition to the Yamaha lineup, offering a perfect combination of power and control for riders of all levels. With its 65cc liquid-cooled, 2-stroke engine, this motorcycle delivers smooth and responsive performance on the track. The YZ65 also features a lightweight and durable chassis, making it easy to handle and maneuver through tight turns and obstacles. Overall, the 2021 Yamaha YZ65 is a top choice for riders who are looking for a reliable and capable motocross bike. For riders in search of a high-performance motocross bike, the 2021 Yamaha YZ65 is a standout option. Its powerful 65cc engine and lightweight chassis make for an exhilarating riding experience on the track. With its exceptional handling and impressive power delivery, the YZ65 is a top choice for riders who demand precision and control in every ride. Whether you're a beginner looking to hone your skills or a seasoned rider in need of an upgrade, the 2021 Yamaha YZ65 is a top-performing motorcycle that delivers on both power and agility.