RENTHAL MN-672S Rear Ultralight Sprocket Drive Wi MN/672S

( Brand: Renthal ), ( Manufacturer Part Number: MN/672S ), ( Compatible Year: 2006 2005 2004 2003 ), ( Bundle Description: 1 Pc Genuine Renthal Ultralight Rear Sprockets ), ( Type: Ultralight Rear Sprockets ), ( Core Charge: Free No Core Charge ), ( Fitment Type: Direct Replacement )

Review RENTHAL Mn/672s Ultralight Rear Sprocket Kawasaki Drive Wi fits KFX400 2003–2006

Introducing the Renthal MN/672S Ultralight Rear Sprocket, specifically designed for the Kawasaki KFX400 models produced between 2003 and 2006. This high-performance sprocket is an excellent upgrade for those seeking to enhance their ATV's power delivery, acceleration, and overall riding experience.

The Renthal MN/672S Ultralight Rear Sprocket boasts several impressive features. Firstly, it is engineered from high-strength aluminum alloy, making it incredibly lightweight at just 1.1 lbs (500g), significantly reducing unsprung weight for improved handling and responsiveness.

This ultralight sprocket boasts a 672 pitch, which is a popular choice among ATV enthusiasts for its optimal balance between power and efficiency. It is also designed with a 22-tooth configuration, which provides excellent torque and acceleration while maintaining a reasonable top speed.

The Renthal MN/672S Ultralight Rear Sprocket is also compatible with various chain sizes, including 520, 525, and 530. It comes with a new O-ring seal, ensuring a perfect fit and a reliable seal against the elements.

Installation is straightforward, requiring no modification to the ATV's stock drive system. The sprocket comes with clear installation instructions, ensuring a hassle-free installation process.

Upgrading to the Renthal MN/672S Ultralight Rear Sprocket offers numerous benefits. It provides smoother power delivery, improved acceleration, and increased top-end speed. Additionally, its lightweight design enhances handling and agility, making it an essential upgrade for any serious ATV rider.

In summary, the Renthal MN/672S Ultralight Rear Sprocket is an excellent choice for Kawasaki KFX400 owners seeking to enhance their ATV's performance, efficiency, and handling. Its lightweight design, compatibility with various chain sizes, and straightforward installation process make it a must-have upgrade for any serious ATV enthusiast.

Renthal MN/672S Ultralight Rear Sprocket for 2003-2006 Kawasaki KFX400: A Comprehensive Analysis

The Renthal MN/672S Ultralight Rear Sprocket is a popular aftermarket accessory for the 2003-2006 Kawasaki KFX400. This component is designed to reduce unsprung weight, improve acceleration, and increase power delivery. In this analysis, we will discuss the advantages and disadvantages of using this sprocket on your Kawasaki ATV.

1. Reduced Unsprung Weight: An ultralight rear sprocket like the Renthal MN/672S significantly reduces the unsprung weight of your ATV. Unsprung weight refers to the weight of the suspension components that moves up and down with the suspension. By reducing unsprung weight, the suspension can more effectively absorb shocks, resulting in improved handling and a smoother ride.

2. Enhanced Acceleration: A lighter rear sprocket reduces the inertia of the drivetrain, enabling quicker acceleration. This can be particularly beneficial in technical terrain or during aggressive riding situations.

3. Improved Power Delivery: By reducing the weight of the drivetrain, more power is transmitted to the ground, leading to improved power delivery. This can result in better overall performance and a more enjoyable riding experience.

4. Durability: Renthal is a well-known brand in the ATV and motorcycle industries, and their components are known for their durability. The MN/672S Ultralight Rear Sprocket is no exception, and it is designed to withstand the rigors of off-road riding.

5. Aesthetics: The Renthal MN/672S Ultralight Rear Sprocket has a sleek and modern design that can enhance the visual appeal of your Kawasaki KFX400.

1. Cost: The Renthal MN/672S Ultralight Rear Sprocket is more expensive than OEM sprockets. However, the benefits it provides may justify the additional cost for some riders.

2. Installation: Installing the Renthal MN/672S Ultralight Rear Sprocket may require some mechanical knowledge and tools. It is recommended to have it installed by a professional to ensure proper alignment and tension of the drive belt.

3. Belt Tension: Due to the lighter weight of the sprocket, the drive belt may require more tension than an OEM sprocket. Proper belt tension is crucial for optimal performance and longevity.

The Renthal MN/672S Ultralight Rear Sprocket offers several advantages for the 2003-2006 Kawasaki KFX400, including reduced unsprung weight, enhanced acceleration, improved power delivery, durability, and aesthetics. However, it also comes with some disadvantages, such as a higher cost, installation challenges, and the requirement for proper belt tension.

If you are an aggressive rider who values improved handling, quicker acceleration, and better power delivery, the Renthal MN/672S Ultralight Rear Sprocket is an excellent investment for your 2003-2006 Kawasaki KFX400. However, if you are a casual rider or have a limited budget, the OEM sprocket may be sufficient for your needs. Ultimately, the decision to upgrade depends on your riding style and priorities.

part # mn672s price

• $103.88

specifications utvshift:

• for models: Kfx400
• for makes: Kawasaki
• for years: 2003-2006
• brand: Renthal
• manufacturer part number: MN/672S
• compatible year: 2006 2005 2004 2003
• bundle description: 1 Pc Genuine Renthal Ultralight Rear Sprockets
• type: Ultralight Rear Sprockets
• core charge: Free No Core Charge
• fitment type: Direct Replacement

offer utvshift:

• quantity: 1
• options: Ship-to-home
• started: May 17, 2026
• availability: In Stock
• sold: 0

payments utvshift:

• other
• credit card: Diners-club
• wallet: Paypal

general utvshift:

• condition: New
• ATV, Side-by-Side UTV Parts Accessories > Transmission Drivetrain > Other Transmission Drivetrain Parts

returns utvshift:

• time: 30 Days
• paid by: Seller
• policy: Returns Accepted

shipping utvshift:

• type: Fixed
• cost: $0.00
• service: Standard
• class: Standard
• transit: 4-6 Days

seller utvshift:

• rating: 99.3%
• # reviews: 22890

Renthal MN-672S Is Similar To:

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• Renthal 765442080958 520 Grooved Front Sprocket 14t #450 520-14gp Fits Honda Trx400 (41.5% similar) $36.39–$38.57. (February 13th, 2025)