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Yamaha's MT-09 received its biggest update in 2021 since its launch. The latest generation brings major improvements to every part of the motorcycle. From a bigger engine to cutting-edge electronics, the 2021 model showcases a brand new chassis design, fresh styling, and better performance.
The 2021 MT-09's engine now packs 889cc, delivering more power than before. Riders can pick between two variants - the standard MT-09 and the premium MT-09 SP. The SP version comes with better suspension parts and exclusive design elements. This complete review looks at the bike's new engine specs, electronic features, handling, and real-life performance to help buyers understand what it can do.
REVAMPED ENGINE AND CHASSIS
Yamaha's engineering rise centers on their completely redesigned CP3 engine. This powerplant now boasts an expanded 889cc capacity that delivers 117.4 horsepower at 10,000 rpm and 68.6 lb-ft of torque at 7,000 rpm [1]. The improved engine features new pistons, connecting rods, camshafts, and crankcases that engineers designed to reduce weight while ensuring reliable performance [1].
The engine demonstrates remarkable efficiency gains with an 11% boost in fuel economy that reaches 49 mpg [1]. A redesigned fuel delivery system features repositioned injectors that spray directly at the intake valve heads to optimize fuel atomization and combustion efficiency.
New 889cc CP3 engine specs
The core team has outlined these essential engine specifications:
- Bore × stroke: 78 mm × 62.1 mm
- Compression ratio: 11.5:1
- DOHC 4-valve-per-cylinder configuration
- Yamaha Chip Controlled Throttle (YCC-T)
Lightweight aluminum frame
The 2021 MT-09's chassis marks a breakthrough in motorcycle engineering. Yamaha's controlled filling (CF) die-casting technology produces a new frame that delivers 50% greater lateral rigidity while maintaining optimal longitudinal and torsional characteristics [2]. The frame demonstrates Yamaha's engineering excellence with its remarkably thin 1.7mm profile at its narrowest point [1].
Yamaha replaced the steel construction with an aluminum subframe that weighs 3.3 pounds less [1]. The redesigned swingarm weighs 250g less than the previous model [3], which improves the motorcycle's agility and handling precision.
Improved power-to-weight ratio
The 2021 MT-09 achieves an impressive weight reduction at just 417 pounds [1]. The bike weighs 51 pounds less than the Z900 and 57 pounds less than the BMW F900R, giving it a clear edge over its competitors [1].
The MT-09 stands out in its class with more power output and less weight. Its enhanced power-to-weight ratio delivers exceptional performance and efficiency. Yamaha shows its engineering excellence by using lightweight materials in the chassis and engine components to optimize the bike's performance capabilities.
ADVANCED ELECTRONICS PACKAGE
Yamaha has brought their flagship superbike's technology to the MT-09 with an advanced electronics package. The system features a compact 6-axis IMU that weighs 40% less and measures 50% smaller than the YZF-R1's unit. This smart system monitors the motorcycle's movement in all directions and provides a detailed set of rider aids.
6-axis IMU
The Inertial Measurement Unit monitors acceleration across forward-backward, up-down, and left-right directions and measures pitch, roll, and yaw movements. This advanced system processes up-to-the-minute data that adjusts electronic interventions and gives riders exceptional control with enhanced safety features.
Lean-sensitive rider aids
The MT-09 has several sophisticated electronic systems that work together seamlessly:
- Traction Control System (TCS): Three intervention levels monitor wheel speed differences and lean angles to give you optimal rear-wheel traction [5]
- Slide Control System (SCS): This MotoGP-derived technology manages power delivery to control lateral movement [6]
- Lift Control System (LIF): The system keeps your front wheel in check during acceleration while power delivery remains smooth [5]
- Brake Control System (BC): You get cornering ABS functionality with two distinct modes
Ride modes and customization
The 2021 MT-09 comes with four unique riding modes that adapt to different road conditions. Mode 1 gives you the sharpest response, while Mode 4 is designed specifically for wet weather riding with reduced power [7]. All but one of these modes (1, 2, and 3) deliver full power with varying response speeds. Mode 4 keeps you safe in tough conditions by limiting the maximum output to 70% [7].
Yamaha's Ride Control (YRC) system lets riders choose between three ready-to-use modes - SPORT, STREET, and RAIN - along with two custom settings [5]. Riders can adjust these settings right from the dashboard or through their smartphone with the Y-Connect app [5]. The system is highly adaptable to the rider's priorities, and you can turn off most assistance features except ABS [8].
The sophisticated electronic system shows its real value through smooth and exact throttle control in every mode. Unlike previous models, it eliminates unwanted throttle jerks [8]. This refined control system proves Yamaha's commitment to blending performance and ease of use in their 2021 MT-09 platform.
HANDLING AND PERFORMANCE
The 2021 MT-09 features refined handling characteristics with the most important upgrades to its suspension and braking systems. The motorcycle's improved chassis dynamics create a more sophisticated riding experience than its predecessor.
Suspension upgrades
The 2021 MT-09 comes equipped with KYB suspension components that provide impressive adjustability. Riders can adjust the front fork's high- and low-speed compression damping separately, while also fine-tuning rebound damping and spring preload [9]. The SP variant raises the package with:
- Diamond Like Carbon-coated KYB fork
- Öhlins shock with remote preload adjuster
- Separate compression and rebound damping controls
- Better small bump absorption characteristics
These premium suspension components show significant improvements in bump absorption and compliance, and the SP version excels at maintaining stability on uneven surfaces [9]. The premium components have reduced stiction giving riders a more planted and confident feel during aggressive riding [9].
Braking system improvements
The braking system uses ADVICS TOYO S30H components with sintered pads [10] that deliver consistent stopping power in all riding conditions. This system performs exceptionally well with the R1-derived ABS technology and provides outstanding feel and modulation [11].
The brake setup provides riders with:
- Progressive feel: Excellent modulation to control precisely
- Strong original bite: Improved stopping power from cold
- Consistent performance: Reliable braking in all conditions
Ground riding impressions
The MT-09's ground performance shows how versatile it is in different riding scenarios. Quick turns and better chassis feedback come from the new lighter wheels that have 11% less inertia [11]. The bike's unsprung weight reduction makes a noticeable difference in handling.
Bridgestone Battlax S22 tires paired with the refined suspension give riders excellent front-end feedback and confidence during aggressive turns [11]. The MT-09's stability and predictability shine through while its engine pumps out strong mid-range torque that makes twisty roads a blast [12].
This bike isn't just about sport riding - it's a jack of all trades. The suspension stays composed during relaxed rides yet firms up nicely when you push hard into corners [11]. City streets or mountain roads - the MT-09 handles them all with equal skill.
The SP model's premium suspension takes the riding experience to another level. Riders notice big improvements in bump absorption and chassis stability [9]. The bike lets you dial in the suspension just right for your riding style and road conditions [9].
CONCLUSION
The 2021 Yamaha MT-09 combines engineering excellence with practical performance. Yamaha's detailed redesign brings major improvements with its bigger 889cc engine, lightweight chassis, and advanced electronic systems. These features blend naturally to create a motorcycle that shines in both technical capability and real-life use. The bike's impressive power-to-weight ratio sets new benchmarks in the naked bike segment.
The latest MT-09 appeals strongly to experienced riders and tech enthusiasts alike. Its sophisticated 6-axis IMU-based electronics package offers precise control and safety features while keeping the MT series' raw excitement intact. The bike's versatile handling and premium suspension options, especially in the SP variant, make it stand out. Yamaha's thoughtful engineering and rider-focused design raise the naked bike experience to new heights.
FREQUENTLY ASKED QUESTIONS
1. What are some drawbacks of the Yamaha MT-09?
The MT-09's power delivery can be problematic, being manageable in 'B' mode but overly abrupt in 'STD' and 'A' modes when transitioning from a closed throttle. Additionally, the suspension system lacks sufficient damping control, with forks that are overly stiff and high. These issues with throttle response and suspension significantly detract from the bike's performance in various riding conditions.
2. How much power does the 2021 Yamaha MT-09 generate?
The 2021 Yamaha MT-09 SP, tested on a Dynojet 250i dynamometer, achieves a peak output of 107.21 horsepower at 9,930 rpm and 63.32 pound-feet of torque at 7,030 rpm. These figures are slightly higher than those of other models powered by the same CP3 engine.
3. What updates have been made to the Yamaha MT-09 in 2021?
The 2021 Yamaha MT-09 features several significant updates, including a completely new frame and new front forks, along with refined settings. The new frame plays a crucial role in enhancing the bike's handling, especially in terms of stiffness and flexibility when navigating bumpy back roads.
References
[11] - https://ultimatemotorcycling.com/2021/03/20/2021-yamaha-mt-09-review-16-fast-facts-from-the-canyons/
