1. ATV Transmission & Drivetrain Parts Deals
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  3. RENTHAL 9389-R141356-ATV

RENTHAL 9389-R141356-ATV Rear Ultralight SPROCKET-36T Atv

fits model: Kfx450r. make: Kawasaki. year: 2008–2014.

9389-r141356-atv Renthal Ultralight Rear Sprocket-36t For 2008-2014 Kawasaki Kfx450r Atv

( Brand: Renthal ), ( Manufacturer Part Number: 9389-R141356-ATV )

Review RENTHAL Ultralight Rear Kawasaki Atv fits KFX450R 2008–2014

Introducing the Renthall 9389-R141356-ATV Ultralight Rear Sprocket, specifically designed for the 2008-2014 Kawasaki KFX450R ATV. This high-performance sprocket is an excellent upgrade for any off-road enthusiast looking to enhance their vehicle's power delivery and improve its overall efficiency.

The Ultralight Rear Sprocket from Renthall is engineered using premium quality materials, ensuring durability and reliability under the most demanding off-road conditions. The sprocket's 36 teeth design offers optimal power transfer between the engine and the drive system, delivering smoother acceleration and better overall performance.

One of the key features of this Ultralight Rear Sprocket is its lightweight construction. Weighing significantly less than the OEM sprocket, this upgrade helps reduce unsprung weight, which in turn results in improved handling and responsiveness. The lightweight design also helps reduce rotational mass, allowing the engine to rev more freely and deliver more power to the wheels.

The Renthall Ultralight Rear Sprocket is also designed with easy installation in mind. It comes with a factory-installed seal and a high-quality bearing, ensuring a quick and straightforward installation process. Additionally, the sprocket's tooth design is optimized for quiet operation, providing a more enjoyable riding experience for the rider.

Upgrading to the Renthall 9389-R141356-ATV Ultralight Rear Sprocket is an excellent investment for any Kawasaki KFX450R ATV owner looking to improve their vehicle's performance, handling, and overall efficiency. With its durable construction, lightweight design, and easy installation process, this upgrade is sure to provide long-lasting benefits for your off-road adventures.

Renthall Ultralight Rear Sprocket (9389-R141356-ATV) for 2008-2014 Kawasaki KFX450R ATV: A Comprehensive Analysis

Introduction:

The Renthall Ultralight Rear Sprocket (model number 9389-R141356-ATV) is a popular aftermarket upgrade for the Kawasaki KFX450R ATV, especially for those who prioritize weight reduction and increased power transfer. In this analysis, we will discuss the potential advantages and disadvantages of investing in this particular aftermarket part.

Pros:

1. Weight Reduction: The Renthall Ultralight Rear Sprocket is designed to be lighter than the OEM sprocket, which can result in better acceleration and overall vehicle performance. A lighter sprocket means less rotating mass, allowing the engine to deliver power more efficiently.

2. Improved Power Transfer: The ultralight design also enhances power transfer between the engine and the drive wheels, resulting in smoother operation and increased horsepower.

3. Durability: Renthall is a reputable manufacturer known for producing high-quality aftermarket parts. The Ultralight Rear Sprocket is no exception, as it is engineered to withstand the rigors of off-road riding.

4. Customization: Installing an aftermarket ultralight sprocket allows riders to tailor their ATV's performance to their specific preferences and riding styles.

Cons:

1. Cost: The Renthall Ultralight Rear Sprocket is priced higher than the OEM sprocket. While the potential performance benefits may justify the investment for some, others may view the cost as a deterrent.

2. Installation Complexity: Installing the aftermarket sprocket may require additional steps compared to the OEM part. This could include the need for specialized tools or additional labor costs.

3. Potential Noise: Some users have reported an increase in noise levels after installing the Renthall Ultralight Rear Sprocket. While this is not a concern for all users, it may be a consideration for those who prioritize a quiet riding experience.

Conclusion:

The Renthall Ultralight Rear Sprocket (9389-R141356-ATV) offers several advantages for the 2008-2014 Kawasaki KFX450R ATV, including weight reduction, improved power transfer, durability, and customization. However, it also comes with potential drawbacks, such as higher cost, installation complexity, and the possibility of increased noise. Ultimately, the decision to invest in this aftermarket part depends on the rider's priorities, budget, and desired performance enhancements.

Recommendation:

If you are a serious off-road rider seeking to optimize your KFX450R ATV's performance, the Renthall Ultralight Rear Sprocket is a worthwhile investment. Its potential benefits, such as weight reduction and enhanced power transfer, can significantly improve the vehicle's overall performance. However, be sure to carefully consider the potential drawbacks, such as cost and installation complexity, before making a purchase. If you are unsure about the installation process or have limited experience with aftermarket parts, it may be wise to consult a professional mechanic for assistance.

part # 9389r141356 prices

  • $82.99-$96.24

specifications utvshift:

  • for models: Kfx450r
  • for makes: Kawasaki
  • for years: 2008-2014
  • brand: Renthal
  • manufacturer part number: 9389-R141356-ATV

shipping utvshift:

  • cost: $0.00
  • service: Standard
  • class: Standard
  • type: Fixed
  • transit: 2-5 Days

offer utvshift:

  • availability: In Stock
  • quantity: 4
  • options: Ship-to-home
  • sold: 0
  • started: July 24, 2025

seller utvshift:

  • rating: 99.5%
  • # reviews: 64451

returns utvshift:

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

general utvshift:

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

payments utvshift:

  • credit card: Diners-club
  • wallet: Apple-pay
  • other
for models: kfx450r, for makes: kawasaki, for years: 2008-2014,
category: atv parts > atv, side-by-side utv parts accessories > transmission drivetrain > transmission drivetrain parts, sku: 7312448072065791,

Renthal 9389-R141356 Is Similar To:

utvshift logo
5 offers $82.99–$96.24 USD
  • Offer #1: $82.99 price + free delivery = $82.99* total. Combination of a very high strength base material and an exceptionally hard-wearing surface result in significantly increased chainwheel life. 7075-T6 aluminum alloy rear chainwheels are 66% lighter than steel, yet incredibly durable.FREE SHIPPING
  • Offer #2: $96.24 price + $5.99 delivery = $102.23* total. Machined self-cleaning mud grooves at each tooth to help increase wear resistance. Renthal 491-415-36P-OR Ultralight Rear Sprocket 36T Orange.+$5.99 shipping
  • Offer #3: $91.83 price + $9.99 delivery = $101.82* total. Renthal Ultralight rear chainwheels are manufactured to exteremly tight tolerences from a special material developed to withstand the rigours of Supercross, Motocross and Enduro. Renthal 437U-520-36GSI Ultralight Rear Sprocket.+$9.99 shipping
  • Offer #4: $92.83 price + $13.49 delivery = $106.32* total. Their advanced tooth profile, concentricity and accuracy of fit provide maximum power transfer and long-life. The 7075 T6 aluminium alloy rear chainwheels are 66% lighter than steel, yet incredibly durable.+$13.49 shipping
  • Offer #5: $89.84 price + free delivery = $89.84* total. Sprocket Size : 520.FREE SHIPPING