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2007 KTM 65 SX Overview, Reviews, Ratings & Specs

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Drew B | October 12, 2025
The 2007 KTM 65 SX is a potent mini-motocross bike designed for aspiring young racers. As part of KTM's long-standing SX line, it has consistently been a benchmark in its class. This single-seat, dirt bike model year focuses on delivering performance. While specific trims aren't heavily differentiated in this class, the core model is what matters. Its popularity stems from KTM's reputation for building race-ready machines with high-quality components and aggressive styling, making it a desirable choice for serious young riders.
The Good

The 2007 KTM 65 SX boasts exhilarating performance with its potent engine, appealing to the thrill-seeking young rider. Its robust build quality offers practical reliability, while the aggressive, race-inspired design fuels a sense of pride and ambition. This combination provides exceptional value for aspiring racers looking for a competitive edge.

The Bad

Potential owners of the 2007 KTM 65 SX should be aware of its demanding maintenance schedule, especially for the two-stroke engine. Clutch wear can be a concern with aggressive riding. Additionally, the suspension, while capable, might require tuning for different rider weights and track conditions to prevent bottoming out.

2007 KTM 65 SX: Quick Overview

  • Engine: 65cc, liquid-cooled, two-stroke, single-cylinder

  • Bore x Stroke: 45 mm x 40.8 mm

  • Carburetor: Keihin PWK 28

  • Ignition: CD ignition with adjustable ignition timing

  • Transmission: 6-speed

  • Clutch: Wet multi-disc clutch

  • Fuel System: Carbureted

  • Fuel Economy: Not applicable for this type of performance off-road motorcycle; emphasis is on power delivery.

  • Horsepower: Approximately 15-18 hp (varies slightly based on tuning and exhaust).

  • 0-60 Times: Not a relevant metric for this vehicle. Acceleration is designed for track performance and launch.

  • Top Speed: Varies significantly based on gearing, rider weight, and track conditions, but typically in the range of 40-50 mph.

  • Towing Capacity: Not applicable.

  • Frame: Chromoly steel tubular frame

  • Front Suspension: WP USD (Upside-Down) telescopic forks, 35mm diameter, 240mm travel

  • Rear Suspension: WP monoshock, 270mm travel

  • Front Brake: Hydraulic disc brake with 2-piston caliper

  • Rear Brake: Hydraulic disc brake with 1-piston caliper

  • Wheels: Spoked rims, 14-inch front, 12-inch rear

  • Tires: Off-road knobby tires

  • Seat Height: Approximately 760 mm (29.9 inches)

  • Ground Clearance: Approximately 300 mm (11.8 inches)

  • Weight: Approximately 53 kg (117 lbs) dry weight

  • Trim-Level Features: The 2007 KTM 65 SX is generally a single, high-performance trim. Key features include aggressive race graphics, high-quality WP suspension components, durable Magura hydraulic clutch, and a potent two-stroke engine tuned for competitive racing. It comes equipped with race-ready components designed for durability and performance on the motocross track.

2007 KTM 65 SX Specifications

Vehicle Information
Year 2007
Make KTM
Model 65 SX
Trim -
Style -
Type Motorcycle
Category Motorcycle Minibike
Manufacturing Details
Made In Austria
Manufacturing City MATTIGHOFEN
Dimensions
Doors -
Curb Weight -
Gross Vehicle Weight Rating -
Overall Height -
Overall Length -
Overall Width -
Wheelbase Length -
Standard Seating -
Engine & Performance
Engine 124cc 0cyl
Engine Size 124L
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 2007 KTM 65 SX Have?

The 2007 KTM 65 SX, like many high-performance two-stroke dirt bikes, is known for requiring diligent maintenance to ensure long-term reliability. One of the most frequently reported areas of concern is the clutch. Due to the nature of motocross riding, which often involves aggressive clutch use, the clutch plates can wear out faster than on less demanding vehicles. Regular inspection and replacement of clutch components are crucial.

Another aspect to watch out for is the transmission. While generally robust, improper shifting or lack of lubrication can lead to premature wear of gears. Owners often report needing to address shifting issues or minor gearbox problems if maintenance is neglected. The two-stroke engine, while powerful, also demands consistent attention. The top end (piston and rings) will require rebuilding at regular intervals to maintain optimal performance and prevent damage. This is not necessarily a sign of unreliability but rather a characteristic of high-performance two-stroke engines.

Cooling system maintenance is also vital. Ensuring the radiator is clean and free of blockages, and the coolant is fresh, helps prevent overheating, which can lead to more severe engine damage. Suspension components, particularly seals in the WP forks and shock, can eventually wear and require service to maintain their performance and prevent leaks.

While specific recalls for the 2007 KTM 65 SX are not widely documented, it is always advisable for owners to check with KTM or relevant authorities for any potential safety campaigns that might have been issued. Long-term reliability heavily depends on how the bike was ridden and maintained. A bike that was raced hard and poorly maintained will likely have more issues than one that was used more casually and received regular service. The build quality of KTMs is generally high, but the performance-oriented nature means parts are stressed more heavily than on a recreational trail bike.

How long will the 2007 KTM 65 SX last?

Estimating average mileage for a 2007 KTM 65 SX is challenging as these bikes are primarily used for racing and often accumulate hours of operation rather than miles. For a competitive rider, an engine rebuild (top-end) might be needed every 40-60 hours of hard riding. A full engine overhaul could be necessary every 100-150 hours.

With meticulous maintenance, including regular oil changes, air filter cleaning, and drivetrain checks, these bikes can last for many seasons. However, neglected maintenance is the primary cause of premature wear. Weaknesses that can emerge over time include worn clutch components, potential gearbox issues if not properly serviced, and eventual wear on suspension seals and bearings. The frame itself is robust, but cosmetic damage from crashes is common. Overall durability is directly tied to usage and upkeep; a well-maintained 65 SX can provide several years of competitive service for a young rider.

What Technology & Safety Features are Included?

The 2007 KTM 65 SX is a purpose-built motocross machine, and as such, it prioritizes performance and rider control over advanced technology, entertainment, or typical automotive safety features. It is not equipped with any form of built-in tech or entertainment systems like radios, touchscreens, or infotainment. Driver-assistance features, common in cars, are absent here, as the rider is entirely in control of every aspect of the vehicle's operation.

Safety features on a motocross bike are primarily focused on the mechanical aspects of the vehicle and its ability to handle the demands of off-road riding. This includes robust suspension designed to absorb impacts, powerful hydraulic disc brakes for effective stopping power, and durable construction to withstand the stresses of racing. The design itself emphasizes rider ergonomics and control, allowing the rider to maneuver the bike effectively.

Optional features would typically be performance enhancements or protective accessories rather than technological upgrades. These could include aftermarket exhaust systems for increased power, different gearing for specific track conditions, or upgraded suspension components for more advanced riders. Protection-wise, optional additions might include handguards to protect levers and hands from debris or impacts, or frame guards to protect the engine cases.

Crash-test ratings are not applicable to motocross motorcycles like the 2007 KTM 65 SX. These vehicles are designed to be ridden off-road in controlled environments (motocross tracks), and their safety is inherently linked to rider skill, protective gear worn by the rider, and the bike's mechanical integrity and handling characteristics. The focus is on a rider's ability to control the machine and avoid crashes, rather than passive safety systems designed to protect occupants in a collision.

What Colors Options are Available?

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2007 KTM 65 SX Prices and Market Value

When new, the 2007 KTM 65 SX typically retailed in the range of $4,000 to $4,500, reflecting its status as a high-quality, race-ready mini-motocross bike. Used market prices for a 2007 KTM 65 SX in good condition can vary significantly, generally ranging from $1,000 to $2,500. This wide range is due to factors such as the bike's overall condition, the number of hours on the engine, any modifications made, and the completeness of its maintenance history.

Depreciation is quite steep in the first few years, as is common with most specialized off-road vehicles. However, after the initial drop, these bikes tend to hold their value relatively well, especially if they have been well-maintained and are in good mechanical order. Factors that positively affect resale value include original parts, low hours, a documented maintenance record, and clean, race-ready appearance. Conversely, bikes that have been heavily modified, raced extensively without proper care, or show significant cosmetic damage will command lower prices. Finding a well-preserved example can be a good investment for a young rider entering the sport.

2007 KTM 65 SX Cost of Ownership

Owning a 2007 KTM 65 SX can be considered moderately costly, especially when factoring in its performance-oriented nature. Insurance is typically minimal, often covered under a homeowner's policy or specific off-road vehicle insurance, which is less expensive than street-legal bikes. Fuel costs are relatively low due to the small two-stroke engine and limited usage hours. However, maintenance and repair costs can be significant. Regular oil changes, air filter cleaning, chain and sprocket replacement, and periodic top-end rebuilds are essential and add up. Parts, while readily available, can be premium-priced. Overall, while not prohibitively expensive for enthusiasts, it requires a budget for upkeep to maintain its competitive edge and reliability.

2007 KTM 65 SX Fuel Efficiency

Fuel Type Gasoline
Fuel Capacity -
City Mileage -
Highway Mileage -

2007 KTM 65 SX 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

2007 KTM 65 SX Insurance

Insurance for a 2007 KTM 65 SX is moderately priced, reflecting its status as a Motorcycle with strong safety ratings and
reasonable repair costs.

How Does the 2007 KTM 65 SX Compare to Other Motorcycle?

The 2007 KTM 65 SX competes in the highly contested mini-motocross segment against rivals such as the Yamaha YZ65, Kawasaki KX65, and Suzuki RM65.

Performance: KTM has historically been at the forefront of performance in this class. The 2007 65 SX typically offered a potent and responsive two-stroke engine, often considered one of the most powerful in its category for its year. It was known for its strong mid-range and top-end power delivery, making it ideal for aggressive riding and racing. Yamaha and Kawasaki also offer strong, competitive engines, but KTM often had a slight edge in outright power.

Features: KTMs are usually well-equipped with high-quality components. The 2007 65 SX featured WP suspension, which is renowned for its performance and adjustability, often considered superior to the suspension found on some competitors. It also typically came with robust brakes and durable chassis components. While feature sets are generally similar across this class (basic controls, no electronics), the quality of the integrated parts, like suspension and brakes, can differentiate them.

Reliability: In terms of reliability, all brands in this class require diligent maintenance. KTM's two-stroke engines are high-strung and demand regular attention to avoid issues. However, with proper care, they are reliable. Competitors like Yamaha have a reputation for bulletproof reliability, but sometimes at the cost of peak performance. Kawasaki and Suzuki also offer solid reliability. Long-term, the durability of all these bikes hinges heavily on maintenance and how they were ridden.

Price: When new, prices were competitive across the board, with KTM often being at the higher end due to its premium components. Used, the 2007 KTM 65 SX generally falls within a similar price bracket as its rivals, with condition and maintenance being the primary drivers of value.

Alternatives: Similar alternatives include the Kawasaki KX65 and Yamaha YZ65. The Yamaha YZ65 is often praised for its user-friendliness and reliability, making it a strong choice for beginners. The Kawasaki KX65 is also a capable performer. If the primary goal is outright performance and aggressive styling, the 2007 KTM 65 SX is an excellent choice. If slightly more emphasis on ease of use and potentially lower maintenance frequency is desired, the Yamaha YZ65 might be a better fit. Suzuki also had the RM65, though it was less common in later years. Ultimately, the choice often comes down to brand preference, local dealer support, and the specific condition of the used bike available.

Final Verdict: Is the 2007 KTM 65 SX a Good Motorcycle?

The 2007 KTM 65 SX is ideally suited for young, aspiring motocross racers who are serious about competition and developing their riding skills. It is a high-performance machine that rewards diligent maintenance and offers a potent package for track use. It is worth buying if you prioritize performance and are prepared for the associated upkeep.

Buying used is the only realistic option for this model year. It is worth buying a 2007 KTM 65 SX if it is in good mechanical condition, has a well-documented maintenance history, and the price reflects its age and usage. Thorough inspection by a knowledgeable mechanic is highly recommended. This bike is not ideal for casual trail riding or beginners looking for a low-maintenance introduction to dirt biking due to its aggressive nature and need for regular attention. For a committed young racer, it offers excellent value and performance potential.

2007 KTM 65 SX Owner Reviews

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Drew B

Drew is a seasoned automotive expert and contributor to VinCheck.info. With nearly 15 years of experience as a former Porsche technician, he brings a wealth of hands-on knowledge to his writing. Born in North Carolina, a region renowned for its deep-rooted NASCAR culture, Drew developed a passion for cars early in life, often building and working on vehicles from a young age. At VINCheck, Drew leverages his extensive technical background to provide in-depth analyses of various vehicles. His articles often focus on engine performance, reliability, and maintenance insights, offering readers practical information grounded in real-world experience. Some of his notable contributions include reviews on the Mazda CX-5's longevity and detailed examinations of engine options for models like the 2011 Toyota Camry and Tacoma