2021 Yamaha MT-09 Specifications

Name: 2021 Yamaha MT-09
Brand: Yamaha

Naked bike • Specs last verified 13 July 2026

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2021 Yamaha MT-09 Overview

Yamaha MT-09 is a naked bike motorcycle, displacing 889 cc. Power comes from a Four stroke, transverse triple cylinder, DOHC, 4 valves per cylinder engine, a compression ratio of 11.5:1. On the performance side, it delivers 117.4 hp @ 10000 rpm of peak power and 93 Nm @ 7000 rpm of torque. On the road, the 2021 MT-09 tips the scales at 189 kg, carries a 14-litre fuel tank, offers a seat height of 825.5 mm and spans a 1430 mm wheelbase. That's roughly 19.5 kg lighter than the average naked bike motorcycle in our database. The full 2021 Yamaha MT-09 spec sheet below covers every technical detail, from suspension travel to tyre sizes.

2021 MT-09 - Pros & Cons

Strengths

Strong power output: With 117.4 hp @ 10000 rpm and 93 Nm @ 7000 rpm of torque on tap, the MT-09 is no slouch for its class.
Fuel injection: Fuel injection means consistent cold starts and clean throttle response without the fussiness of a carbureted setup.

Considerations

Tall seat height: At 825.5 mm, shorter riders will likely be on tiptoes at a standstill - worth sitting on one before you buy.
Chain final drive upkeep: Budget time for routine chain maintenance - it's cheap to replace but needs consistent attention to avoid premature sprocket wear.

Wear Points & Servicing Notes

Cooling system servicing

MT-09's Liquid cooled setup is low-maintenance provided the coolant interval is kept - old, acidic coolant is the main cause of long-term corrosion in the water passages.

Fuelling & injector care

The fuel injectionwith YCC-T on the MT-09 needs little beyond good fuel and periodic use of an injector-cleaner additive - no jetting or float-bowl maintenance to worry about.

Brake disc and pad wear

Braking up front comes from 2x 298mm hydraulic discs, 4-piston calipers - solid stopping power, with disc and pad wear best checked on the same schedule as tyre changes.

Suspension condition on used examples

The MT-09's suspension runs 41mm inverted fork, adjustable preload, compression and rebound at the front. The rear uses Single shock, adjustable preload and rebound damping. Fork-seal condition and rear linkage play are the two things worth checking before buying used.

Final drive maintenance

The MT-09 uses chain final drive, which is cheap to replace but needs regular cleaning, lubrication and tension checks to get a full service life out of the sprockets.

Frame & chassis check

Built around a Diamond frame, the MT-09's chassis is straightforward to inspect: look for corrosion, cracks or repair welds around stress points like the head-stock and swingarm mounts.

MT-09 - Buying & Maintenance Guide

What to check before buying

Before handing over money for a used 2021 Yamaha MT-09, cover the fundamentals: service book and oil change history, chain and sprocket wear, and any sign of oil weeping around the casings. Cold-starting it yourself tells you a lot - a healthy MT-09 should catch quickly and settle into a smooth idle.

Oil and filter changes

Nothing protects a MT-09's engine like disciplined oil changes - stay on the manufacturer's schedule (roughly every 6,000 km or annually). Match the viscosity grade to what the owner's manual specifies, not what's cheapest.

Fuel system care

Fuel injection on the MT-09 needs little attention beyond decent fuel and an occasional system-cleaner additive. Anything left standing for three months or more should have its fuel drained and replaced before it varnishes the injectors.

2021 Yamaha MT-09 - Frequently Asked Questions

What engine does the 2021 Yamaha MT-09 have?

The 2021 Yamaha MT-09 uses a Four stroke, transverse triple cylinder, DOHC, 4 valves per cylinder engine with 889 cc of displacement. It is liquid cooled.

How much does the 2021 Yamaha MT-09 weigh?

The 2021 Yamaha MT-09 weighs 189 kg. This is the manufacturer's wet figure.

How much power does the 2021 Yamaha MT-09 make?

The 2021 Yamaha MT-09 produces 117.4 hp @ 10000 rpm of power and 93 Nm @ 7000 rpm of torque. These are peak figures.

What is the fuel tank capacity of the 2021 Yamaha MT-09?

The 2021 Yamaha MT-09 has a 14-litre fuel tank. At around 5-6 litres per 100 km, that is roughly 233-280 km between stops.

Is the 2021 Yamaha MT-09 suitable for shorter riders?

The 2021 Yamaha MT-09 has a seat height of 825.5 mm. This is towards the tall end of the spectrum and will require most riders under 175 cm to tiptoe at stops.

What brakes does the 2021 Yamaha MT-09 have?

The 2021 Yamaha MT-09 uses 2x 298mm hydraulic discs, 4-piston calipers at the front and Single 245mm hydraulic disc, single piston caliper at the rear.

What tyre sizes does the 2021 Yamaha MT-09 use?

The 2021 Yamaha MT-09 runs 120/70 ZR17 M/C front and 180/55 ZR17 M/C rear tyres. A good selection of sport, touring and all-weather rubber is available in these sizes.

What gearbox does the 2021 Yamaha MT-09 have?

The 2021 Yamaha MT-09 is fitted with a 6 Speed transmission.

Yamaha MT-09 Spec Evolution

The Yamaha MT-09 was produced across 5 model years (2018-2024). The table below highlights the key specifications that changed across the production run - useful whether you are comparing years or tracking down a specific variant.

Specification	2018	2019	2020	2021	2024
Max Power	84.6 kW / 115 hp @ 10,000 rpm	84.6 kW / 115 hp @ 10,000 rpm	84.6 kW / 115 hp @ 10,000 rpm	117.4 hp / 119PS / 87.5 kW @ 10000 rpm	117.4 hp / 119PS / 87.5 kW @ 10000 rpm
Wet Weight	188 kg / 414 lbs - ABS 191 kg / 421 lbs	188 kg / 414 lbs - ABS 191 kg / 421 lbs	188 kg / 414 lbs - ABS 191 kg / 421 lbs	189 kg / 417 lbs	193 kg / 425 lbs
Engine Detail	Four stroke, transverse triple cylinder, DOHC, 4 valve per cylinder	Four stroke, transverse triple cylinder, DOHC, 4 valve per cylinder	Four stroke, transverse triple cylinder, DOHC, 4 valve per cylinder	Four stroke, transverse triple cylinder, DOHC, 4 valves per cylinder	Four stroke, transverse triple cylinder, DOHC, 4 valves per cylinder
Seat Height	815 mm / 32.1 in	815 mm / 32.1 in	815 mm / 32.1 in	825.5 mm / 32.5 in	825.5 mm / 32.5 in
Frame Type	Diamond frame	Diamond frame	Diamond frame	Diamond frame	Controlled-fill die-cast aluminum with sub frame
Displacement	847 cc / 51.6 cu-in	847 cc / 51.6 cu-in	847 cc / 51.6 cu-in	889 cc / 54.2 cu-in	889 cc / 54.2 cu-in
Wheelbase	1440 mm / 56.7 in	1440 mm / 56.7 in	1440 mm / 56.7 in	1430 mm / 56.3 in	1430 mm / 56.3 in
Brakes - Front	2x 298mm discs	2x 298mm discs	2x 298mm discs	2x 298mm hydraulic discs, 4-piston calipers	2x 298mm hydraulic discs, 4-piston calipers

Key Specifications

Engine

Four stroke, transverse triple cylinder, DOHC, 4 valves per cylinder

Power

117.4 hp / 119PS / 87.5 kW @ 10000 rpm

Torque

93 Nm / 68.6lb-ft @ 7000 rpm

Top Speed

Not published by manufacturer

Weight

189 kg / 417 lbs

Fuel Capacity

14 Litres / 3.7 US gal

Full 2021 Yamaha MT-09 Specifications

Year 2021

Make Model Yamaha MT-09

Seat Height 825.5 mm / 32.5 in

Wheelbase 1430 mm / 56.3 in

Ground Clearance 140 mm / 5.5 in

Height 1191 mm / 46.9 in

Length 1191 mm / 46.9 in

Width 795 mm / 31.3 in

Fuel Capacity 14 Litres / 3.7 US gal

Wet Weight 189 kg / 417 lbs

Max Power 117.4 hp / 119PS / 87.5 kW @ 10000 rpm

Max Torque 93 Nm / 68.6lb-ft @ 7000 rpm

Displacement 889 cc / 54.2 cu-in

Engine Detail Four stroke, transverse triple cylinder, DOHC, 4 valves per cylinder

Bore x Stroke 78 x 62.1 mm

Compression Ratio 11.5:1

Cooling System Liquid cooled

Fuel Induction Fuel injection with YCC-T

Ignition TCI: Transistor Controlled Ignition

Lubrication Wet sump

Starter Electric

Clutch Multiplate assist and slipper clutch

Final Drive O-ring chain

Transmission / Drive 6 Speed

Frame Type Diamond frame

Suspension - Front 41mm inverted fork, adjustable preload, compression and rebound

Suspension - Rear Single shock, adjustable preload and rebound damping

Rake 25°

Trail 109 mm / 4.3 in

Wheel Travel - Front 130 mm / 5.1 in

Wheel Travel - Rear 122 mm / 4.8 in

Brakes - Front 2x 298mm hydraulic discs, 4-piston calipers

Brakes - Rear Single 245mm hydraulic disc, single piston caliper

ABS Standard

Tyres - Front 120/70 ZR17 M/C

Tyres - Rear 180/55 ZR17 M/C

Specifications are compiled from manufacturer documentation and cross-referenced technical sources, and corrected on an ongoing basis. Spot an error? Let us know.