The 2021 Yamaha YZ450F is a premier motocross motorcycle with a rich racing heritage. As a prominent model in Yamaha's YZ lineup, it consistently receives updates to maintain its competitive edge. This single-trim model is renowned for its powerful engine and advanced chassis technology, making it a popular choice for both professional racers and serious enthusiasts seeking top-tier performance. Its pricing typically falls in the high-end range for motocross bikes.
The Good
The 2021 YZ450F boasts exhilarating power and agile handling, appealing to the thrill-seeker. Its robust construction promises reliability, a practical concern for any rider. The innovative design and rider-focused ergonomics offer comfort and control, enhancing the overall experience for both performance-driven and conscientious buyers.
The Bad
Potential owners should be aware of the 2021 YZ450F's firm suspension, which may require adjustment for lighter riders or varied terrain. Some may find the clutch engagement a bit abrupt initially. Additionally, its high-performance nature necessitates frequent and thorough maintenance to ensure peak condition.
2021 Yamaha YZ450F: Quick Overview
- Engine: 449cc liquid-cooled DOHC 4-stroke
- Engine Bore x Stroke: 97.0mm x 60.8mm
- Compression Ratio: 13.0:1
- Fuel Induction: Yamaha Fuel Injection (YFI) with Keihin 44mm throttle body
- Ignition: TCI
- Transmission: Constant-mesh 5-speed; multi-plate wet clutch
- Final Drive: Chain
- Suspension Front: KYB Speed Sensitive System (SSS) dual-chamber spring-rate front fork; adjustable rebound and compression damping; 12.2 inches of travel
- Suspension Rear: KYB Fully adjustable single shock; 12.5 inches of travel
- Brakes Front: Hydraulic disc, 270mm
- Brakes Rear: Hydraulic disc, 245mm
- Tires Front: 80/100-21 Dunlop MX33
- Tires Rear: 110/90-19 Dunlop MX33
- Rake: 27.8°
- Trail: 4.8 in.
- Length: 85.5 in.
- Width: 32.4 in.
- Height: 50.0 in.
- Seat Height: 38.6 in.
- Wheelbase: 58.3 in.
- Ground Clearance: 13.0 in.
- Fuel Capacity: 2.1 gal.
- Oil Capacity: 1.10 US qt.
- Weight (with oil & full tank of fuel): 238 lb.
- Horsepower: Estimated around 55-60 hp (wheel horsepower can vary based on dyno and conditions)
- Fuel Economy: Not officially rated for motocross bikes; performance-oriented fuel consumption.
- 0-60 Times: Not applicable for motocross bikes; focus is on acceleration and track performance.
- Towing Capacity: Not applicable.
- Trim-Level Features: Single trim level offering the latest Yamaha motocross technology, including a lightweight aluminum bilateral beam frame, advanced KYB suspension, powerful engine with dual-map switch for on-the-fly engine characteristics, and Bluetooth connectivity via the Power Tuner app for engine mapping adjustments.
2021 Yamaha YZ450F Specifications
Vehicle Information
| Year | 2021 |
| Make | Yamaha |
| Model | YZ450F |
| Trim | - |
| Style | - |
| Type | Motorcycle |
| Category | Motorcycle |
Manufacturing Details
| Made In | Japan |
| Manufacturing City | IWATA |
Dimensions
| Doors | - |
| Curb Weight | - |
| Gross Vehicle Weight Rating | - |
| Overall Height | - |
| Overall Length | - |
| Overall Width | - |
| Wheelbase Length | - |
| Standard Seating | - |
Engine & Performance
| Engine | 449cc 1cyl |
| Engine Size | 449L |
| Engine Cylinders | 1 |
| Transmission | 5 Motorcycle - Chain Drive |
| Transmission Type | Motorcycle - Chain Drive |
| Transmission Speeds | 5-Speed |
| Drivetrain | - |
Additional Features
| Anti-Brake System | - |
| Steering Type | - |
Pricing
| Manufacturer Suggested Retail Price (MSRP) | - |
| Invoice Price | - |
| Delivery Charges | - |
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What Problems Does the 2021 Yamaha YZ450F Have?
The 2021 Yamaha YZ450F is generally regarded as a reliable machine within the competitive motocross segment. However, as with any high-performance off-road vehicle, consistent and meticulous maintenance is paramount. Some riders have reported minor issues related to clutch durability under extreme use, though this is often a consequence of riding style and usage rather than a design flaw. Overheating can be a concern in very demanding conditions, particularly if the radiator fins are obstructed or coolant levels are not maintained.
There are no widespread, significant mechanical failures or recurring systemic issues specifically plaguing the 2021 model year that have been widely documented in owner forums or professional reviews. Yamaha has a strong reputation for building durable engines and chassis, and the YZ450F generally upholds this.
When it comes to recalls, Yamaha, like all manufacturers, issues them as needed for safety or compliance. It is always advisable for owners to check the official Yamaha website or consult with a Yamaha dealer for any outstanding recalls pertaining to their specific vehicle's VIN. For long-term reliability, the key lies in adhering to the recommended service intervals, using high-quality fluids and parts, and addressing any minor anomalies promptly. Neglecting routine maintenance, such as oil changes, air filter cleaning, and valve checks, will inevitably lead to premature wear and potential problems, regardless of the motorcycle's inherent quality.
There are no widespread, significant mechanical failures or recurring systemic issues specifically plaguing the 2021 model year that have been widely documented in owner forums or professional reviews. Yamaha has a strong reputation for building durable engines and chassis, and the YZ450F generally upholds this.
When it comes to recalls, Yamaha, like all manufacturers, issues them as needed for safety or compliance. It is always advisable for owners to check the official Yamaha website or consult with a Yamaha dealer for any outstanding recalls pertaining to their specific vehicle's VIN. For long-term reliability, the key lies in adhering to the recommended service intervals, using high-quality fluids and parts, and addressing any minor anomalies promptly. Neglecting routine maintenance, such as oil changes, air filter cleaning, and valve checks, will inevitably lead to premature wear and potential problems, regardless of the motorcycle's inherent quality.
How long will the 2021 Yamaha YZ450F last?
Estimating average mileage for a 2021 Yamaha YZ450F is challenging as it's primarily used for recreational and competitive off-road riding, not daily commuting. Many owners accumulate 50-100 hours of riding time annually, translating to an equivalent of a few thousand miles if one were to consider an average speed. With diligent maintenance, including regular oil changes, filter cleaning, and periodic engine top-end rebuilds (piston, rings, valves), these bikes are capable of lasting many years and hundreds of hours of use.
Long-term durability is strong, especially for the chassis and transmission components. The engine's top end will require more frequent attention due to the stresses of high-performance riding. Weaknesses over time primarily stem from wear and tear on parts exposed to the elements and high operating temperatures. Proper care ensures consistent performance for an extended service life.
Long-term durability is strong, especially for the chassis and transmission components. The engine's top end will require more frequent attention due to the stresses of high-performance riding. Weaknesses over time primarily stem from wear and tear on parts exposed to the elements and high operating temperatures. Proper care ensures consistent performance for an extended service life.
What Technology & Safety Features are Included?
The 2021 Yamaha YZ450F, being a dedicated motocross machine, prioritizes performance and rider control over creature comforts typically found in street-legal vehicles. Therefore, it does not feature traditional entertainment systems or driver-assistance technologies like infotainment screens, audio systems, or adaptive cruise control.
However, it does incorporate advanced technological features focused on enhancing rider experience and performance tuning. The standout tech feature is the Yamaha Power Tuner app, which connects wirelessly via Bluetooth to the bike's onboard computer. This allows riders to adjust engine mapping (fueling and ignition timing) to suit different track conditions, weather, or personal preferences. The bike also features a dual-map switch on the handlebar, enabling riders to select between two pre-programmed or custom-tuned maps on the fly.
Safety features are inherent in its design and construction, focusing on control and rider feedback. These include powerful hydraulic disc brakes front and rear for reliable stopping power, and a sophisticated suspension system (KYB SSS forks and shock) designed to absorb impacts and maintain tire contact with the terrain. Unlike road-going vehicles, motocross bikes are not subjected to standardized crash-test ratings (e.g., NHTSA or Euro NCAP) as their operational environment and intended use differ significantly. Rider skill and protective gear are the primary safety considerations. Optional features typically revolve around performance enhancements, such as aftermarket exhaust systems, different sprocket combinations, or upgraded suspension components, rather than electronic aids.
However, it does incorporate advanced technological features focused on enhancing rider experience and performance tuning. The standout tech feature is the Yamaha Power Tuner app, which connects wirelessly via Bluetooth to the bike's onboard computer. This allows riders to adjust engine mapping (fueling and ignition timing) to suit different track conditions, weather, or personal preferences. The bike also features a dual-map switch on the handlebar, enabling riders to select between two pre-programmed or custom-tuned maps on the fly.
Safety features are inherent in its design and construction, focusing on control and rider feedback. These include powerful hydraulic disc brakes front and rear for reliable stopping power, and a sophisticated suspension system (KYB SSS forks and shock) designed to absorb impacts and maintain tire contact with the terrain. Unlike road-going vehicles, motocross bikes are not subjected to standardized crash-test ratings (e.g., NHTSA or Euro NCAP) as their operational environment and intended use differ significantly. Rider skill and protective gear are the primary safety considerations. Optional features typically revolve around performance enhancements, such as aftermarket exhaust systems, different sprocket combinations, or upgraded suspension components, rather than electronic aids.
What Colors Options are Available?
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In the meantime, feel free to explore the other sections for more content.
2021 Yamaha YZ450F Prices and Market Value
When new, the 2021 Yamaha YZ450F was typically priced in the range of $9,399 MSRP. Current used market prices for a 2021 model can vary significantly based on condition, hours of use, and any modifications. Expect to find them generally ranging from $6,500 to $8,500, with well-maintained, low-hour examples commanding higher figures.
Depreciation on motocross bikes is generally steeper in the first year or two compared to street bikes, as usage hours are a primary factor in value. However, Yamaha's YZ series holds its value relatively well due to their strong reputation for performance and durability. Factors affecting resale value include the number of engine hours (often a more relevant metric than mileage), the quality of maintenance performed, the presence of aftermarket upgrades (which can be a double-edged sword, sometimes increasing value if high-quality, sometimes decreasing it if poorly done), and the overall cosmetic condition of the plastics and frame.
Depreciation on motocross bikes is generally steeper in the first year or two compared to street bikes, as usage hours are a primary factor in value. However, Yamaha's YZ series holds its value relatively well due to their strong reputation for performance and durability. Factors affecting resale value include the number of engine hours (often a more relevant metric than mileage), the quality of maintenance performed, the presence of aftermarket upgrades (which can be a double-edged sword, sometimes increasing value if high-quality, sometimes decreasing it if poorly done), and the overall cosmetic condition of the plastics and frame.
2021 Yamaha YZ450F Cost of Ownership
Owning a 2021 Yamaha YZ450F is generally not considered economical, primarily due to its high-performance nature and specialized use.
Insurance: Typically, dirt bikes like the YZ450F have lower insurance premiums than street-legal motorcycles, as they are often covered under specialized off-road policies or homeowner's insurance riders, if at all.
Fuel: It requires premium pump gasoline, with consumption dependent on riding style, but generally higher than a commuter vehicle.
Maintenance & Repair: This is where costs accumulate. Regular oil changes, filter cleaning/replacement, and tire wear are ongoing. More significant costs include engine rebuilds (top-end every 100-200 hours), suspension servicing, and chain/sprocket replacement. Repair costs can be moderate to high depending on the part and labor. Overall, it is a costly vehicle to own and operate if ridden regularly and competitively.
Insurance: Typically, dirt bikes like the YZ450F have lower insurance premiums than street-legal motorcycles, as they are often covered under specialized off-road policies or homeowner's insurance riders, if at all.
Fuel: It requires premium pump gasoline, with consumption dependent on riding style, but generally higher than a commuter vehicle.
Maintenance & Repair: This is where costs accumulate. Regular oil changes, filter cleaning/replacement, and tire wear are ongoing. More significant costs include engine rebuilds (top-end every 100-200 hours), suspension servicing, and chain/sprocket replacement. Repair costs can be moderate to high depending on the part and labor. Overall, it is a costly vehicle to own and operate if ridden regularly and competitively.
2021 Yamaha YZ450F Fuel Efficiency
Fuel Type
Gasoline
Fuel Capacity
-
City Mileage
-
Highway Mileage
-
2021 Yamaha YZ450F Warranty
Basic
Original warranty
0 months / No data
Estimated remaining
Expired
Powertrain
Original warranty
0 months / No data
Estimated remaining
Expired
Rust
Original warranty
0 months / No data
Estimated remaining
Expired
2021 Yamaha YZ450F Insurance
Insurance for a 2021 Yamaha YZ450F is moderately priced, reflecting its status as a Motorcycle with strong safety ratings and
reasonable repair costs.
reasonable repair costs.
How Does the 2021 Yamaha YZ450F Compare to Other Motorcycle?
The 2021 Yamaha YZ450F competes fiercely in the highly contested 450cc motocross segment against rivals such as the Honda CRF450R, Kawasaki KX450, KTM 450 SX-F, and Suzuki RM-Z450.
Performance: Yamaha's YZ450F is renowned for its potent, user-friendly power delivery and excellent chassis balance. It often excels in cornering stability and overall rider comfort, thanks to its advanced KYB suspension. Competitors like the KTM 450 SX-F often boast lighter weight and more aggressive engine characteristics, appealing to riders seeking raw power. The Honda CRF450R is known for its strong mid-to-top-end power and agile handling, while the Kawasaki KX450 offers a well-rounded package with a strong engine and good suspension. The Suzuki RM-Z450 is often praised for its exceptional cornering prowess but can lag slightly in peak power and suspension sophistication compared to the Yamaha.
Features: Yamaha differentiates itself with its intuitive Power Tuner app for seamless engine mapping adjustments, a feature not as advanced or user-friendly on some competitors. The dual-map switch is standard. KTM often leads in premium components and hydraulic clutches. Honda has also improved its electronic rider aids in recent years.
Reliability: Yamaha has a stellar reputation for bulletproof reliability, often considered among the most dependable Japanese motocross bikes. While Japanese brands generally lead in long-term reliability, European brands like KTM have made significant strides. Suzuki's RM-Z series can sometimes require more frequent engine maintenance.
Price: The YZ450F typically sits in the middle to upper end of the Japanese offerings, often slightly more affordable than KTM's premium offerings when new.
Alternatives:
* Similar: Kawasaki KX450 and Honda CRF450R are very close competitors, offering slightly different strengths that might suit individual rider preferences.
* Higher Performance Focus: KTM 450 SX-F is the benchmark for many, offering a lighter package and often sharper performance, but at a higher price point and potentially requiring more intense maintenance.
* Value/Cornering Specialist: Suzuki RM-Z450 can be a more budget-friendly option and is unmatched in its ability to carve through corners, though it may lack the outright power and suspension refinement of the YZ450F.
Performance: Yamaha's YZ450F is renowned for its potent, user-friendly power delivery and excellent chassis balance. It often excels in cornering stability and overall rider comfort, thanks to its advanced KYB suspension. Competitors like the KTM 450 SX-F often boast lighter weight and more aggressive engine characteristics, appealing to riders seeking raw power. The Honda CRF450R is known for its strong mid-to-top-end power and agile handling, while the Kawasaki KX450 offers a well-rounded package with a strong engine and good suspension. The Suzuki RM-Z450 is often praised for its exceptional cornering prowess but can lag slightly in peak power and suspension sophistication compared to the Yamaha.
Features: Yamaha differentiates itself with its intuitive Power Tuner app for seamless engine mapping adjustments, a feature not as advanced or user-friendly on some competitors. The dual-map switch is standard. KTM often leads in premium components and hydraulic clutches. Honda has also improved its electronic rider aids in recent years.
Reliability: Yamaha has a stellar reputation for bulletproof reliability, often considered among the most dependable Japanese motocross bikes. While Japanese brands generally lead in long-term reliability, European brands like KTM have made significant strides. Suzuki's RM-Z series can sometimes require more frequent engine maintenance.
Price: The YZ450F typically sits in the middle to upper end of the Japanese offerings, often slightly more affordable than KTM's premium offerings when new.
Alternatives:
* Similar: Kawasaki KX450 and Honda CRF450R are very close competitors, offering slightly different strengths that might suit individual rider preferences.
* Higher Performance Focus: KTM 450 SX-F is the benchmark for many, offering a lighter package and often sharper performance, but at a higher price point and potentially requiring more intense maintenance.
* Value/Cornering Specialist: Suzuki RM-Z450 can be a more budget-friendly option and is unmatched in its ability to carve through corners, though it may lack the outright power and suspension refinement of the YZ450F.
Final Verdict: Is the 2021 Yamaha YZ450F a Good Motorcycle?
The 2021 Yamaha YZ450F is an excellent choice for intermediate to expert motocross riders and serious off-road enthusiasts who prioritize a potent, well-balanced machine with class-leading suspension and user-friendly tuning capabilities. Its strong engine performance, coupled with Yamaha's renowned reliability, makes it a highly competitive and dependable platform.
It is worth buying, especially in the used market, as it offers significant performance for its price point after initial depreciation. While buying new provides the latest advancements, a well-maintained used 2021 YZ450F can be a fantastic value. It's ideal for riders who appreciate advanced technology like the Power Tuner app for customizing engine characteristics. For riders less concerned with cutting-edge tech and more focused on outright power and handling, competitors might offer slightly different advantages, but the YZ450F remains a top-tier, highly recommended motocross motorcycle.
It is worth buying, especially in the used market, as it offers significant performance for its price point after initial depreciation. While buying new provides the latest advancements, a well-maintained used 2021 YZ450F can be a fantastic value. It's ideal for riders who appreciate advanced technology like the Power Tuner app for customizing engine characteristics. For riders less concerned with cutting-edge tech and more focused on outright power and handling, competitors might offer slightly different advantages, but the YZ450F remains a top-tier, highly recommended motocross motorcycle.
Eugene S
Eugene is an automotive enthusiast with over 15 years of experience in the used car market. As a writer at VINCheck.info, he brings deep industry insight and a passion for cars, helping readers make smart, informed decisions. Eugene has written hundreds of used car reviews and is known for breaking down complex automotive topics into clear, actionable advice. Over the years, he has driven and worked on a wide range of vehicles—starting with tuning street cars in his early days and eventually focusing on performance upgrades and reliability improvements. Today, he specializes in evaluating used vehicles through the lens of real-world ownership and enthusiast needs. A longtime fan of Porsche, Eugene especially appreciates vehicles that blend durability with driving enjoyment.