What category is the 2017 Yamaha YZ125X?

The 2017 Yamaha YZ125X has a Category of Enduro / offroad.

What is the engine size of the 2017 Yamaha YZ125X?

The 2017 Yamaha YZ125X has a Capacity: of 124.00 ccm (7.57 cubic inches).

What type of engine does the 2017 Yamaha YZ125X have?

The 2017 Yamaha YZ125X has a Engine type of Single cylinder, two-stroke.

Is the 2017 Yamaha YZ125X air cooled or liquid cooled?

The 2017 Yamaha YZ125X has a Cooling system of Liquid.

How many gears does the 2017 Yamaha YZ125X have?

The 2017 Yamaha YZ125X has a Gearbox of 6-speed.

How much does the 2017 Yamaha YZ125X weigh?

The 2017 Yamaha YZ125X has a Weight incl. oil, gas, etc of 93.5 kg (206.1 pounds).

Yamaha YZ125X - 2017 Specifications and Reviews

Name: 2017 Yamaha YZ125X
Brand: Yamaha

The 2017 Yamaha YZ125X is a competition-focused two-stroke dirt bike designed for intermediate to advanced off-road riders seeking lightweight agility and responsive handling. Known for its potent power delivery and nimble chassis, it excels in motocross and cross-country racing environments. The bike features fully adjustable suspension, hydraulic disc brakes, and a proven 125cc engine delivering high performance across varied terrain.

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2017

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General information
Category	Enduro / offroad
Year	2017
Model	Yamaha YZ125X
Engine and Transmission Specifications
Clutch	O-ring chain
Transmission type,final drive	Chain
Gearbox	6-speed
Cooling system	Liquid
Lubrication system	Premix
Ignition	CDI
Fuel system	Carburettor. Mikuni TMX 38
Bore x Stroke	54.0 x 54.5 mm (2.1 x 2.1 inches)
Compression	7.1:1
Engine details	Reed-valve-inducted
Engine type	Single cylinder, two-stroke
Capacity:	124.00 ccm (7.57 cubic inches)

Brakes, suspension, Frame and wheels
Rear brakes diameter	245 mm (9.6 inches)
Rear brakes	Single disc. Hydraulic.
Front brakes diameter	270 mm (10.6 inches)
Front brakes	Single disc. Hydraulic.
Rear tyre	100/90-18
Front tyre	80/100-21
Rear wheel travel	315 mm (12.4 inches)
Rear Suspension	Fully adjustable single shock
Front wheel travel	300 mm (11.8 inches)
Front Suspension	Speed-sensitive system inverted fork
Trail	109 mm (4.3 inches)
Rake (fork angle)	26.0°
Frame type	Semi-double cradle aluminium frame

Physical measures and capacities
Oil capacity	0.70 litres (0.05 quarts)
Fuel capacity	8.00 litres (2.11 gallons)
Wheelbase	1,443 mm (56.8 inches)
Weight incl. oil, gas, etc	93.5 kg (206.1 pounds)
Other specs
Maintenance	Find parts, fluids, filters, maintenance tools and service items on eBay
Starter	Kick
Color options	Blue/White

Performance Profile & Rider Fit

Best For

Track55%

City10%

Cornering85%

Daily Riding10%

Touring10%

Passenger5%

Rider Profile

Best For	Best suited to intermediate-to-advanced off-road riders who understand 2-stroke power delivery and clutch management.
Purpose	Built as a cross-country/off-road competition machine, essentially a trail-tuned YZ125 motocrosser with wider-ratio gearing and off-road suspension settings.
Rider Fit	Very light wet weight and tall seat height demand an active, fit rider comfortable standing and shifting body weight through rough terrain.
Character	Raw, high-strung, and reward-driven, this bike delivers sharp, punchy 2-stroke power and razor-sharp agility for riders who like to work the bike hard.
Not Ideal For	Not for riders seeking comfort, highway capability, passenger accommodation, or a low-maintenance, easy-going ride.

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

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Rider Reviews

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MotorcycleDB Review

The 2017 Yamaha YZ125X is a powerful and nimble off-road motorcycle that is perfect for riders looking to tackle rough terrain. Its 125cc two-stroke engine delivers impressive power and acceleration, while its lightweight and agile frame make it easy to handle on tight trails. The YZ125X also features a smooth-shifting 6-speed transmission, high-performance suspension, and durable construction, making it a reliable choice for off-road enthusiasts. Overall, the 2017 Yamaha YZ125X is a top-notch off-road motorcycle that offers exceptional performance and handling. Whether you're navigating through tight woods or conquering steep hills, this bike is up for the challenge. With its powerful engine, responsive suspension, and lightweight design, the YZ125X is a fantastic choice for anyone looking to push the limits on the trail.