The 2005 Honda TRX400EX is a highly sought-after sport ATV, produced from 2001 to 2008. Its body style is a high-performance, two-wheel-drive quad designed for recreational riding and light competition. While there aren't distinct key trims, its enduring popularity stems from its robust engine, nimble handling, and legendary Honda reliability. New pricing varied, but used models today can range from $3,000 to $6,000 depending on condition and modifications.
The Good
The 2005 TRX400EX offers thrilling performance with its torquey engine and responsive handling, appealing to riders seeking excitement. Its legendary Honda reliability provides peace of mind and practical value, while its sporty design captures enthusiasts' hearts. It strikes a balance between fun and dependable ownership.
The Bad
Owners should be aware of potential carburetor issues, especially if not properly maintained or adjusted. Clutch wear can also be a concern on heavily used units. Additionally, older models may exhibit normal wear and tear on suspension components and bearings, requiring regular inspection.
2005 Honda TRX400EX: Quick Overview
- Engine: 397cc air-cooled, four-stroke, single-cylinder
- Horsepower: Approximately 30-32 hp (stock)
- Fuel Economy: Varies significantly with riding style and terrain. Typically around 20-30 miles per gallon.
- 0-60 mph: Not officially published, but estimated to be in the 5-7 second range for stock models, depending on traction and rider.
- Towing Capacity: Not applicable. The TRX400EX is a sport ATV and is not designed or equipped for towing.
- Transmission: 5-speed manual with reverse.
- Final Drive: O-ring sealed chain.
- Suspension (Front): Independent double-wishbone with adjustable shocks. Travel typically around 8.2 inches.
- Suspension (Rear): Swingarm with adjustable shock. Travel typically around 7.9 inches.
- Brakes (Front): Dual hydraulic disc brakes.
- Brakes (Rear): Single hydraulic disc brake.
- Tires (Front): 22 x 7-10
- Tires (Rear): 20 x 10-9
- Fuel Capacity: 3.2 gallons (including 0.7-gallon reserve).
- Dry Weight: Approximately 360 lbs.
- Key Features (Standard): Electric starter, powerful engine for its class, comfortable seating position, aggressive sport styling, durable chassis, adjustable suspension.
- Trim-Level Features: The 2005 TRX400EX was offered in a single primary configuration without distinct 'trims' in the automotive sense. Color options varied by year, with the 2005 model typically available in Red.
2005 Honda TRX400EX Specifications
Vehicle Information
| Year | 2005 |
| Make | Honda |
| Model | TRX400EX |
| Trim | - |
| Style | - |
| Type | Motorcycle |
| Category | Low Speed Vehicle |
Manufacturing Details
| Made In | United States |
| Manufacturing City | TIMMONSVILLE |
Dimensions
| Doors | - |
| Curb Weight | - |
| Gross Vehicle Weight Rating | - |
| Overall Height | - |
| Overall Length | - |
| Overall Width | - |
| Wheelbase Length | - |
| Standard Seating | - |
Engine & Performance
| Engine | 400CC |
| Engine Size | 400L |
| Engine Cylinders | - |
| Transmission | - |
| Transmission Type | - |
| Transmission Speeds | - |
| 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 2005 Honda TRX400EX Have?
The 2005 Honda TRX400EX is renowned for its overall reliability, a hallmark of Honda engineering. However, like any machine, it has a few commonly reported points that owners should be aware of. One frequent concern revolves around the carburetor. Over time, especially with infrequent use or improper storage, the carburetor can become clogged or require re-jetting to maintain optimal performance, particularly if modifications like aftermarket exhausts or air filters have been installed. This is not necessarily a weakness of the model year itself, but rather a common maintenance item for carbureted engines.
Another area that can require attention is the clutch. Aggressive riding, frequent wheelies, or excessive use in challenging terrain can lead to accelerated clutch wear. Owners should listen for signs of slippage, such as a loss of power under acceleration. Regular clutch adjustments and eventual replacement are expected maintenance items, particularly for higher-mileage or harder-ridden machines.
While specific recalls for the 2005 TRX400EX are not widely documented as major widespread issues, it's always prudent for owners to check with Honda for any outstanding safety bulletins or recall campaigns that might apply to their specific VIN. Older ATVs can sometimes have recalls issued years after their production for component failures that may become apparent over time.
Long-term reliability is generally excellent, provided the ATV receives regular maintenance. This includes oil changes, chain lubrication and adjustment, air filter cleaning, and checking for leaks. The engine is a robust unit that can last for many thousands of hours if treated well. Weaknesses over time often stem from neglect rather than inherent design flaws. For instance, bearings in the steering stem, wheel hubs, and swingarm can eventually wear out, especially if the ATV is frequently exposed to water and mud without proper cleaning and greasing. Suspension components, like shocks and bushings, can also degrade over time and may require rebuilding or replacement to restore optimal ride quality and handling.
Another area that can require attention is the clutch. Aggressive riding, frequent wheelies, or excessive use in challenging terrain can lead to accelerated clutch wear. Owners should listen for signs of slippage, such as a loss of power under acceleration. Regular clutch adjustments and eventual replacement are expected maintenance items, particularly for higher-mileage or harder-ridden machines.
While specific recalls for the 2005 TRX400EX are not widely documented as major widespread issues, it's always prudent for owners to check with Honda for any outstanding safety bulletins or recall campaigns that might apply to their specific VIN. Older ATVs can sometimes have recalls issued years after their production for component failures that may become apparent over time.
Long-term reliability is generally excellent, provided the ATV receives regular maintenance. This includes oil changes, chain lubrication and adjustment, air filter cleaning, and checking for leaks. The engine is a robust unit that can last for many thousands of hours if treated well. Weaknesses over time often stem from neglect rather than inherent design flaws. For instance, bearings in the steering stem, wheel hubs, and swingarm can eventually wear out, especially if the ATV is frequently exposed to water and mud without proper cleaning and greasing. Suspension components, like shocks and bushings, can also degrade over time and may require rebuilding or replacement to restore optimal ride quality and handling.
How long will the 2005 Honda TRX400EX last?
Estimating average mileage for an ATV like the 2005 Honda TRX400EX is challenging due to varied usage patterns. However, well-maintained units can easily see 10-15 years of service or more. Riders who use their ATVs primarily for recreational trail riding and perform regular maintenance (oil changes, chain lubrication, filter cleaning) can expect their TRX400EX to remain reliable for a very long time. Durability is a strong suit; the engine and chassis are built to withstand significant use. Weaknesses that emerge over time are typically related to wear and tear on components like wheel bearings, suspension bushings, and the clutch, especially if subjected to harsh conditions, mud, and water without proper care. Neglect is the primary enemy of long-term durability for this model.
What Technology & Safety Features are Included?
The 2005 Honda TRX400EX is a performance-oriented sport ATV, and as such, its focus is on mechanical capability rather than advanced technology, entertainment, or driver-assistance features typically found in modern vehicles. Built-in technology is minimal by today's standards. It features an electric starter for convenience, an LCD multi-function meter that displays the odometer and trip meter, and usually indicator lights for neutral, reverse, oil pressure, and high beam. There is no onboard entertainment system, such as a radio or speakers, as the primary sensory experience is the sound and feel of the engine and the environment.
Driver-assistance features are non-existent. The ATV relies entirely on the rider's skill for control and safety. There are no electronic aids like traction control, stability control, or anti-lock braking systems (ABS). The braking system consists of manual hydraulic disc brakes operated by levers on the handlebars and a foot pedal.
Safety features are basic but functional for its intended purpose. It has sturdy handlebars with comfortable grips, handguards to protect the rider's hands from debris, and a well-designed seat for rider stability. The aggressive tire tread patterns provide grip on various terrains. However, the primary safety aspects depend on the rider wearing appropriate protective gear, including a helmet, goggles, gloves, and sturdy footwear.
Optional features were typically aftermarket enhancements rather than factory-installed packages. These could include upgraded exhaust systems for more power and sound, different carburetor jets for performance tuning, improved suspension components, nerf bars for foot protection, larger fuel tanks for extended range, and cosmetic upgrades.
Regarding crash-test ratings, ATVs are not subjected to the same standardized crash testing protocols as passenger cars or trucks. Therefore, official crash-test ratings from organizations like the NHTSA or IIHS are not available for the 2005 Honda TRX400EX or any other ATV.
Driver-assistance features are non-existent. The ATV relies entirely on the rider's skill for control and safety. There are no electronic aids like traction control, stability control, or anti-lock braking systems (ABS). The braking system consists of manual hydraulic disc brakes operated by levers on the handlebars and a foot pedal.
Safety features are basic but functional for its intended purpose. It has sturdy handlebars with comfortable grips, handguards to protect the rider's hands from debris, and a well-designed seat for rider stability. The aggressive tire tread patterns provide grip on various terrains. However, the primary safety aspects depend on the rider wearing appropriate protective gear, including a helmet, goggles, gloves, and sturdy footwear.
Optional features were typically aftermarket enhancements rather than factory-installed packages. These could include upgraded exhaust systems for more power and sound, different carburetor jets for performance tuning, improved suspension components, nerf bars for foot protection, larger fuel tanks for extended range, and cosmetic upgrades.
Regarding crash-test ratings, ATVs are not subjected to the same standardized crash testing protocols as passenger cars or trucks. Therefore, official crash-test ratings from organizations like the NHTSA or IIHS are not available for the 2005 Honda TRX400EX or any other ATV.
What Colors Options are Available?
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In the meantime, feel free to explore the other sections for more content.
In the meantime, feel free to explore the other sections for more content.
2005 Honda TRX400EX Prices and Market Value
When new, the 2005 Honda TRX400EX typically retailed in the range of $6,000 to $7,000, depending on dealership pricing and any minor year-to-year package variations. Today, the used market prices for a 2005 TRX400EX generally fall between $3,000 and $6,000. This wide range is heavily influenced by the ATV's condition, mileage (or hours of use), the presence and quality of aftermarket modifications, and whether it has been meticulously maintained. The TRX400EX has shown remarkable value retention, with depreciation slowing significantly after its initial years. Factors affecting resale value include cosmetic condition, mechanical soundness, originality versus tasteful modifications, and demand from enthusiasts seeking a reliable, capable sport ATV.
2005 Honda TRX400EX Cost of Ownership
Owning a 2005 Honda TRX400EX is generally economical compared to many motorized vehicles, particularly when considering its recreational purpose. Insurance costs are typically modest, often falling under powersports policies. Fuel consumption is reasonable for its class, averaging around 20-30 mpg depending on riding style. Routine maintenance, including oil changes and chain care, is straightforward and inexpensive. Repairs, if needed, can be managed with readily available parts. Overall, the TRX400EX is known for its durability, minimizing major repair costs over time if properly maintained, making it a cost-effective choice for enthusiasts.
2005 Honda TRX400EX Fuel Efficiency
Fuel Type
Gasoline
Fuel Capacity
-
City Mileage
-
Highway Mileage
-
2005 Honda TRX400EX 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
2005 Honda TRX400EX Insurance
Insurance for a 2005 Honda TRX400EX is moderately priced, reflecting its status as a Motorcycle with strong safety ratings and
reasonable repair costs.
reasonable repair costs.
How Does the 2005 Honda TRX400EX Compare to Other Motorcycle?
The 2005 Honda TRX400EX competes in the popular sport ATV segment against formidable rivals like the Yamaha YFZ450, Suzuki LT-Z400 (and its Kawasaki KFX400 sibling), and the Polaris Predator 500.
Performance: The TRX400EX, with its air-cooled 397cc engine, offers a strong, predictable torque curve and excellent low-to-mid-range power, making it very manageable and fun for trail riding. The YFZ450, with its liquid-cooled 450cc engine, generally boasts higher peak horsepower and more aggressive acceleration, leaning towards racing. The LT-Z400/KFX400 offer a good balance of power and trail capability, often considered a good all-rounder. The Polaris Predator 500, while powerful, sometimes had a reputation for being a bit more 'raw' and demanding.
Features: In 2005, features were relatively basic across the board. The TRX400EX had a manual clutch and 5-speed transmission with reverse, offering versatility. The YFZ450 and LT-Z400/KFX400 also featured manual transmissions. Many of these models shared similar suspension travel and braking systems. The YFZ450 and Predator 500 sometimes offered slightly more advanced suspension setups or features for their time.
Reliability: Honda's reputation for rock-solid reliability strongly favors the TRX400EX. While the LT-Z400/KFX400 are also known for good reliability, the TRX400EX is often seen as the benchmark. The YFZ450, while a performance king, sometimes required more diligent maintenance to sustain its top-tier performance. Polaris models historically faced more reliability concerns compared to their Japanese counterparts.
Price: In their era, pricing was competitive. Today, used prices reflect their popularity and perceived reliability. The TRX400EX often holds its value very well due to its dependability. The LT-Z400/KFX400 are typically good value, while YFZ450s can command higher prices due to their racing pedigree and performance.
Alternatives:
* Similar: The Suzuki LT-Z400 and Kawasaki KFX400 are very similar in spirit and capability, offering a slightly more modern feel and liquid-cooled engines.
* More Performance-Oriented: If raw power and racing are the primary goals, the Yamaha YFZ450 is a top contender, though it demands more attention and potentially higher maintenance costs.
* More Budget-Friendly (Used): Older models of the LT-Z400/KFX400 can sometimes be found at slightly lower price points than the TRX400EX in comparable condition.
Performance: The TRX400EX, with its air-cooled 397cc engine, offers a strong, predictable torque curve and excellent low-to-mid-range power, making it very manageable and fun for trail riding. The YFZ450, with its liquid-cooled 450cc engine, generally boasts higher peak horsepower and more aggressive acceleration, leaning towards racing. The LT-Z400/KFX400 offer a good balance of power and trail capability, often considered a good all-rounder. The Polaris Predator 500, while powerful, sometimes had a reputation for being a bit more 'raw' and demanding.
Features: In 2005, features were relatively basic across the board. The TRX400EX had a manual clutch and 5-speed transmission with reverse, offering versatility. The YFZ450 and LT-Z400/KFX400 also featured manual transmissions. Many of these models shared similar suspension travel and braking systems. The YFZ450 and Predator 500 sometimes offered slightly more advanced suspension setups or features for their time.
Reliability: Honda's reputation for rock-solid reliability strongly favors the TRX400EX. While the LT-Z400/KFX400 are also known for good reliability, the TRX400EX is often seen as the benchmark. The YFZ450, while a performance king, sometimes required more diligent maintenance to sustain its top-tier performance. Polaris models historically faced more reliability concerns compared to their Japanese counterparts.
Price: In their era, pricing was competitive. Today, used prices reflect their popularity and perceived reliability. The TRX400EX often holds its value very well due to its dependability. The LT-Z400/KFX400 are typically good value, while YFZ450s can command higher prices due to their racing pedigree and performance.
Alternatives:
* Similar: The Suzuki LT-Z400 and Kawasaki KFX400 are very similar in spirit and capability, offering a slightly more modern feel and liquid-cooled engines.
* More Performance-Oriented: If raw power and racing are the primary goals, the Yamaha YFZ450 is a top contender, though it demands more attention and potentially higher maintenance costs.
* More Budget-Friendly (Used): Older models of the LT-Z400/KFX400 can sometimes be found at slightly lower price points than the TRX400EX in comparable condition.
Final Verdict: Is the 2005 Honda TRX400EX a Good Motorcycle?
The 2005 Honda TRX400EX is an ideal choice for recreational riders, intermediate ATV enthusiasts, and those who prioritize reliability and manageable power. It's perfect for trail riding, general off-roading, and even light cross-country racing where its robust torque and predictable handling shine. It is absolutely worth buying, especially on the used market, as it offers exceptional value and longevity. Purchasing a well-maintained used model is the most practical approach, as new ones are no longer available. Buyers should focus on inspecting for signs of abuse or neglect, particularly with the engine and suspension, but with diligent searching, a solid TRX400EX can provide years of enjoyment and dependable service, making it a smart investment for its intended use.
Simon A
Simon is a contributor to VinCheck, where he provides articles and reviews on various automotive topics. His work focuses on delivering accurate and up-to-date information about used cars, helping readers make informed decisions.