RENTHAL MN-BF0K Rear Ultralight Sprocket Drive Ec MN/BF0K

( Brand: Renthal ), ( Manufacturer Part Number: MN/BF0K ), ( Compatible Year: 2018 2017 2016 2015 2014 2013 2012 2011 2010 2009 ), ( 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/bf0k Ultralight Rear Sprocket Yamaha Drive Ec fits YFZ450R 2009–2018

Introducing the Renthal MN/BF0K Ultralight Rear Sprocket, a high-performance upgrade for your 2009-2018 Yamaha YFZ450R ATV. This lightweight sprocket is designed to enhance your driving experience by reducing unsprung weight and improving power transfer.

The Renthal MN/BF0K Ultralight Rear Sprocket is CNC machined from 7075 T6 aluminum, ensuring a strong and durable construction. Weighing in at only 1.1 lb (500g), this sprocket is approximately 1.3 lb (600g) lighter than the OEM sprocket, making a significant difference in the agility and responsiveness of your ATV.

This upgraded sprocket features a 24-tooth design, providing optimal gear ratios for various riding conditions. The tooth profile is precision-engineered for smooth engagement and efficient power transfer, resulting in a more responsive and quicker acceleration.

The Renthal MN/BF0K Ultralight Rear Sprocket comes with a 10mm bolt and a 12mm nut, allowing for easy installation. It is compatible with stock drive chains and requires no modification to the drive system. Additionally, the sprocket is available in both a standard and a quiet version, allowing you to choose the one that best suits your riding preferences.

In summary, the Renthal MN/BF0K Ultralight Rear Sprocket is a must-have upgrade for anyone seeking to enhance the performance and agility of their 2009-2018 Yamaha YFZ450R ATV. By reducing unsprung weight and improving power transfer, this ultralight sprocket will give you a more responsive and efficient driving experience.

The Renthal MN/BF0K ultralight rear sprocket is a popular aftermarket option for the Yamaha YFZ450R drive EC model from 2009 to 2018. This sprocket is known for its lightweight design, which can provide several benefits for off-road riders. Here are some pros and cons to consider before making a purchase:

1. Weight reduction: The ultralight sprocket is significantly lighter than the stock sprocket, which can help reduce unsprung weight. This can lead to improved handling, better acceleration, and a more responsive feel.

2. Durability: Renthal is a reputable brand known for producing high-quality aftermarket parts. The MN/BF0K sprocket is made from billet aluminum, which is strong and durable.

3. Customization: By using an aftermarket sprocket, riders can customize their bike to their specific riding style and preferences.

1. Cost: Aftermarket sprockets can be more expensive than stock options.

2. Installation: Installing an aftermarket sprocket may require some mechanical knowledge and tools.

3. Chain wear: A lighter sprocket can put more strain on the chain, which may lead to increased wear and potential replacement costs.

The Renthal MN/BF0K ultralight rear sprocket is a high-quality aftermarket option for the Yamaha YFZ450R drive EC model. While it comes with some advantages, such as weight reduction and durability, it also comes with potential drawbacks, such as cost, installation, and chain wear. Ultimately, the decision to purchase an aftermarket sprocket depends on the rider's budget, mechanical abilities, and riding style. If you prioritize weight reduction and customization, and are willing to invest in the potential costs, then an aftermarket sprocket like the Renthal MN/BF0K may be a worthwhile investment. However, if you are on a tight budget or prefer a more stock setup, then the stock sprocket may be a better choice for you.

part # mnbf0k price

• $84.15

specifications utvshift:

• for models: Yfz450r
• for makes: Yamaha
• for years: 2009-2018
• brand: Renthal
• manufacturer part number: MN/BF0K
• compatible year: 2018 2017 2016 2015 2014 2013 2012 2011 2010 2009
• bundle description: 1 Pc Genuine Renthal Ultralight Rear Sprockets
• type: Ultralight Rear Sprockets
• core charge: Free No Core Charge
• fitment type: Direct Replacement

seller utvshift:

• rating: 97.0%
• # reviews: 8596

general utvshift:

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

payments utvshift:

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

shipping utvshift:

• type: Fixed
• class: Standard
• service: Standard
• transit: 3-4 Days
• cost: $0.00

offer utvshift:

• quantity: 1
• options: Ship-to-home
• availability: In Stock
• started: May 21, 2025
• sold: 0

returns utvshift:

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

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