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Naked bike · 2017

MT-03

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MotoLibrary Score
41 /100 Commuter
Power
42 HP
Torque
29 Nm
Engine
321 ccm

2017 Yamaha MT-03 Technical Analysis & Specification Breakdown

Built around Yamaha's naked motorcycle platform, the 2017 Yamaha MT-03 utilizes a 321 cc (19.6 cu in) liquid-cooled twin, four-stroke layout. In factory specification, peak output is rated at 42 HP (30.7 kW) at 10,750 rpm while maximum torque reaches 29 Nm (21.4 lb-ft) at 9,000 rpm, transferring power to the rear wheel through a 6-speed gearbox and chain final drive. With a specific output of 130.8 HP per liter and a 1,750 rpm working window between peak torque (9,000 rpm) and peak power (10,750 rpm), the engine character is reflecting a performance-oriented street tune that balances strong mid-range pull with an energetic top-end rush.

On the scales, the MT-03 measures 168 kg (370 lbs) wet (curb), translating to a power-to-weight ratio of 0.25 HP/kg (4 kg per horsepower). Rider ergonomics and chassis geometry center around a 780 mm (30.7 in) seat height — offering a neutral standover height that accommodates most average-inseam riders without sacrificing cornering clearance, combined with a 1,380 mm (54.3 in) wheelbase engineered for quick, flickable steering geometry. The 14-liter (3.7 US gal) fuel tank supports practical everyday commuting and weekend road stints.

Within MotoLibrary's Yamaha archive, this model family spans 17 indexed model years from 2004 to 2025, allowing buyers to track year-over-year changes in emissions tuning, weight and equipment.

Specific Output
130.8 HP/L
Power-to-Weight
0.25 HP/kg (4 kg/HP)
Power Band Window
9,000–10,750 rpm
Standover Height
780 mm (30.7 in)
Engine
Displacement 321.0 ccm (19.59 cubic inches)
Engine Type Twin, four-stroke
Engine Details Single cylinder, four-stroke
Power 42.0 HP (30.7 kW)) @ 10750 RPM
Torque 29.0 Nm (3.0 kgf-m or 21.4 ft.lbs) @ 9000 RPM
Compression 11.2:1
Bore x Stroke 68.0 x 44.1 mm (2.7 x 1.7 inches)
Valves/Cylinder 4
Fuel System Injection
Fuel Control Double Overhead Cams/Twin Cam (DOHC)
Ignition TCI
Lubrication Wet
Cooling Liquid
Transmission
Gearbox 6-speed
Final Drive Chain (final drive)
Clutch Wet, multiple disc
Driveline Constant Mesh
Chassis
Frame Type Diamond, steel
Rake 25.0°
Trail 95 mm (3.7 inches)
Front Suspension Telescopic fork
Front Travel 130 mm (5.1 inches)
Rear Suspension Swingarm
Rear Travel 120 mm (4.7 inches)
Wheelbase 1380 mm (54.3 inches)
Ground Clearance 160 mm (6.3 inches)
Wheels & Brakes
Front Tyre 120/70-17
Rear Tyre 160/60-17
Front Brakes Double disc. Hydraulic
Front Brake Ø 298 mm (11.7 inches)
Rear Brakes Single disc. Hydraulic
Rear Brake Ø 220 mm (8.7 inches)
Wheels 10-spoke alloy wheels
Dimensions & Weight
Weight incl. 168.0 kg (370.4 pounds)
Seat Height 780 mm (30.7 inches) If adjustable, lowest setting.
Overall Height 1035 mm (40.7 inches)
Overall Length 2090 mm (82.3 inches)
Fuel Capacity 14.00 litres (3.70 US gallons)
Oil Capacity 2.40 litres (2.54 US quarts)
Other
Starter Electric
Color Options Black, blue/white
More from Yamaha
Buying Checklist

Before You Compare This Bike

Use this page to compare this motorcycle by its real specifications, not only by model name. Focus on the details that affect fit, comfort, handling, range and ownership.

Power
Compare engine output with similar motorcycles if acceleration, highway use or two-up riding matters.
Torque
Torque is useful for judging real-world pull, especially for touring, commuting and loaded riding.
Seat Height
Check the seat height against your inseam and riding posture before choosing a motorcycle.
Fuel Capacity
Fuel capacity helps estimate touring range and how often you may need to stop.
Brakes
Brake setup is worth comparing if you ride in traffic, mountains or with a passenger.
Suspension
Suspension details can matter for comfort, road feel and long-distance riding.
Transmission
Transmission and final drive affect maintenance, smoothness and everyday usability.
Rider Profile

Who Is This Bike For?

🟢
Beginner
A2 license compatible, manageable power.
🏍️
Best For
City & Weekend Rides
📏
Seat Height
78 cm / 30.7 in
Estimate

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