NAMURA TECHNOLOGIES FX-10039-B Forged Standard Piston Kit 76.8MM

( Brand: Namura Technologies ), ( Manufacturer Part Number: FX-10039-B ), ( Part Type: Piston )

Review NAMURA TECHNOLOGIES Forged Standard Bore Size Piston Kit For Honda 76.8mm fits CRF250R 2010–2013

The Namura FX-10039-B Forged Standard Piston Kit is an upgraded replacement option for the stock piston on Honda CRF250R motorcycles manufactured between 2010 and 2013. This piston kit is specifically designed to fit CRF250R models with a 76.8mm bore size.

The forged piston design ensures superior strength and durability, making it an ideal choice for racers and riders who demand high performance from their motorcycles. Forged pistons are made from a single block of aluminum, which is then shaped and machined to precise dimensions. This process results in a piston that is not only stronger but also lighter than its cast counterpart.

The Namura piston kit features a high compression design, with a compression height of 11.0mm and a total height of 28.5mm. This design allows for increased power output and better efficiency, resulting in improved engine performance. The piston skirt is designed with a full-skirted, 2-ring groove configuration, ensuring efficient sealing and reducing the likelihood of ring groove scuffing.

The piston pin is made from high-strength material and features a Honda OEM specification size and finish. The piston pin retaining clip is included in the kit and is made from durable, heat-resistant material.

The piston kit also includes a new piston pin bore honing tool, which ensures a precise fit and proper sealing of the piston rings. This tool is easy to use and ensures that the installation process is straightforward and hassle-free.

In summary, the Namura FX-10039-B Forged Standard Piston Kit is an excellent choice for Honda CRF250R riders looking to improve their bike's performance. With its forged design, high compression ratio, and full-skirted piston, this kit offers superior strength, durability, and power output. The inclusion of a piston pin bore honing tool makes installation quick and easy.

Pros and Cons of Buying a Namura FX-10039-B Forged Standard Piston Kit for Honda CRF250R (2010-2013)

The Namura FX-10039-B forged standard piston kit is a popular upgrade for the Honda CRF250R motorcycles produced between 2010 and 2013. This kit is known for its high-performance benefits, but like any aftermarket part, it comes with its advantages and disadvantages. In this analysis, we will discuss the pros and cons of investing in the Namura FX-10039-B forged standard piston kit.

A. Enhanced Engine Performance

1. Increased horsepower: The forged pistons provide a stronger and more efficient combustion process, resulting in increased horsepower and torque.

2. Improved throttle response: The lighter weight of the forged pistons allows for quicker acceleration and smoother power delivery.

B. Durability

1. Heat resistance: Forged pistons are more resistant to heat, reducing the likelihood of piston failure due to overheating.

2. Longer piston life: The forged pistons are more durable than cast pistons, providing a longer lifespan for the engine.

C. Weight Reduction

1. Improved engine balance: The lighter weight of the forged pistons helps to improve engine balance, leading to better handling and overall performance.

A. Cost

1. Expensive: Forged piston kits are typically more expensive than their cast counterparts, making them a more significant investment.

B. Installation Complexity

1. Professional installation required: Installing forged pistons requires specialized tools and expertise, making it a more involved process than installing a cast piston kit.

The Namura FX-10039-B forged standard piston kit offers several advantages for the Honda CRF250R, including enhanced engine performance, increased durability, and improved weight reduction. However, the significant cost and complex installation process may deter some riders from making the upgrade.

If you are a serious off-road racer or a rider looking for optimal engine performance, the Namura FX-10039-B forged standard piston kit is a worthwhile investment. The benefits it provides can significantly improve your riding experience. However, if you are a casual rider or have a limited budget, you may want to consider other performance upgrades or wait until you have the financial resources to invest in a forged piston kit.

Details:

Namura FORGED Series piston. Made in Taiwan. Namura exclusive forged alloy used offers lower expansion rates, allowing for tighter build tolerances and superior tensile strength at operating temperatures. Kit Includes piston, rings, pin, clips you get exactly what is pictured.

Manufactured by Namura. Compression ratio of 13.2:1. All Namura Forged pistons come with Namura signature features: 100% CNC-machine piston domes, hard anodized domes for reduced carbon build-up and heat resistance M0S2 coated skirts excellent break-in protection properties. Size B piston is 76.77mm.

Kit is for standard bore size - 76.80mm.

part #: fx10039 prices

• $120.87-$175.06

specifications pistondon:

• for models: Crf250r
• for makes: Honda
• for years: 2010-2013
• brand: Namura Technologies
• mpn: Fx-10039-b
• part type: Piston

returns pistondon:

• policy: Returns Accepted
• time: 60 Days
• paid by: Buyer

general pistondon:

• condition: New
• Motorcycle Scooter Parts Accessories > Engines Engine Parts > Pistons, Rings Piston Kits

offer pistondon:

• availability: In Stock
• sold: 0
• quantity: 1
• options: Ship-to-home
• started: March 15, 2025

shipping pistondon:

• cost: $0.00
• class: Standard
• type: Fixed
• transit: 4-9 Days
• service: Standard

payments pistondon:

• other
• credit card: Diners-club
• wallet: Google-pay

seller pistondon:

• rating: 99.5%
• city: Suamico, Wisconsin
• # reviews: 385789

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