YAMAHA B67-25443-00-00 Rear Sprocket MT10 FZ10 43T

( Manufacturer Part Number: B67-25443-00-00 ), ( Part Type: Sprocket ), ( Country Of Origin: Japan )

Review YAMAHA Rear Driven Sprocket 43t Oem New fits R9 2017–2025

The **Yamaha B67-25443-00-00 17 25 R9 MT10 FZ10 Rear Sprocket (43T)** is a precision-engineered, high-performance chainring designed specifically for Yamaha s R9 and MT10 sportbikes, ensuring optimal power transfer and drivetrain efficiency. Crafted from durable, heat-treated steel, this sprocket is built to withstand the intense stresses of high-revving engines, delivering consistent performance even under aggressive riding conditions. The **43-tooth configuration** strikes an ideal balance between acceleration and top-end speed, making it a versatile choice for both track-focused riders and those who prioritize a responsive, sporty riding experience. The sprocket features Yamaha s proprietary **R9/MT10-specific tooth profile**, which minimizes chain wear and reduces the risk of skipping or slippage, even when subjected to extreme throttle inputs or aggressive cornering. Its **precision-machined teeth** ensure smooth engagement with the chain, reducing friction and enhancing overall drivetrain longevity. Whether you're chasing lap times on the track or pushing the limits on the road, this sprocket is engineered to maintain reliability and performance, making it a must-have upgrade for enthusiasts seeking to optimize their bike s power delivery. Built to Yamaha s exacting standards, it seamlessly integrates with the stock drivetrain, ensuring compatibility without compromising on quality or durability.

### **Pros and Cons of buying a Yamaha B67-25443-00-00 (17" 25" R9 MT10 FZ10 Rear Sprocket 43T)**

1. **OEM Compatibility** This is an original Yamaha sprocket designed specifically for the R9, MT10, and FZ10 models. It ensures a perfect fit without modification, reducing the risk of alignment issues or premature wear.

2. **Durability** Yamaha uses high-quality materials in their OEM parts, which are built to last under normal riding conditions. The 43T sprocket is designed to work efficiently with the stock chain and cassette, reducing chain stretch and wear over time.

3. **Reliability** Since it s a genuine part, it meets Yamaha s engineering standards, meaning it s less likely to fail prematurely compared to aftermarket knockoffs that may use substandard components.

4. **Chain Wear Reduction** A well-matched sprocket helps distribute wear more evenly across the chain, potentially extending its lifespan and reducing maintenance costs.

5. **Performance Consistency** The correct sprocket size ensures optimal gearing, improving throttle response and overall drivetrain efficiency, especially if you re running stock or near-stock setups.

6. **Ease of Installation** Being an OEM part, it should fit seamlessly without requiring special tools or adjustments beyond standard chain and sprocket installation procedures.

7. **Warranty Coverage** If purchased directly from Yamaha or an authorized dealer, this part may still be under warranty, providing peace of mind against defects.

1. **Cost** OEM parts from Yamaha are typically more expensive than aftermarket alternatives. While the price difference may be justified for some riders, budget-conscious buyers might find cheaper options elsewhere.

2. **Limited Customization** If you re looking to modify your bike s gearing (e.g., for track use, long-distance touring, or aggressive riding), a 43T sprocket may not offer the optimal ratio. You d need to pair it with a different chainring or rear cassette for significant gearing changes.

3. **Availability** Depending on your location, genuine Yamaha parts may not always be in stock at local dealers, requiring online purchases or longer wait times.

4. **Overkill for Mild Use** If you ride lightly (e.g., mostly city commuting or casual cruising), the extra durability of an OEM sprocket may not be necessary, and a high-quality aftermarket part could suffice at a lower cost.

5. **Potential for Overpaying** Some aftermarket brands (e.g., Rotor, DID, or Shimano) offer sprocket kits that are nearly as durable and sometimes even better engineered than OEM parts, especially if you re open to non-Yamaha components.

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### **Conclusion**

The **Yamaha B67-25443-00-00 (43T rear sprocket)** is an excellent choice if you prioritize **reliability, OEM fitment, and long-term durability** without modifying your bike s gearing. It s ideal for riders who want to maintain stock performance, ensure compatibility, and avoid potential issues from mismatched or low-quality parts. However, if you re on a tight budget, open to gearing modifications, or prefer aftermarket brands with similar or superior engineering, there may be more cost-effective alternatives.

For most **stock or near-stock riders**, this sprocket is a **safe and recommended purchase**. If you re planning significant gearing changes (e.g., for track use or aggressive riding), consider pairing it with a custom chainring or cassette for better performance.

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- **Buy it if:** You want a **direct replacement** for your Yamaha R9/MT10/FZ10, prioritize **durability and warranty coverage**, and don t need gearing modifications.

- **Consider alternatives if:** You re open to **aftermarket brands** (e.g., Rotor, DID, or Shimano) for better value, plan to **modify your gearing**, or ride lightly and want to save money.

- **Best for:** Riders who value **original equipment quality** and want to avoid compatibility issues.

For most casual to moderate riders, the **Yamaha OEM sprocket is a solid, low-risk choice**. If you re competitive or heavily modify your bike, research aftermarket options that offer **better gearing flexibility** at a lower cost.

Details:

Yamaha MT10 MT10jcl 2018. YAMAHA 2018 MT10 MT10JCGY REAR WHEEL. Yamaha MT10 MT10jcgy 2018. YAMAHA 2018 MT10 MT10JCL REAR WHEEL.

part #: b67254430000 prices

• $21.38-$99.99

specifications fendeframat:

• for models: R9
• for makes: Yamaha
• for years: 2017-2025
• mpn: B67-25443-00-00
• part type: Sprocket
• country of origin: Japan

general fendeframat:

• Motorcycle Scooter Parts Accessories > Body Frame > Other Body Frame
• condition: Used

payments fendeframat:

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

seller fendeframat:

• city: Milwaukee, Wisconsin
• # reviews: 20818
• rating: 99.8%

shipping fendeframat:

• class: Standard
• cost: $19.99
• service: UPS Ground
• carrier: UPS
• type: Fixed
• transit: 3-7 Days

returns fendeframat:

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

offer fendeframat:

• availability: In Stock
• started: February 4, 2026
• quantity: 1
• best offers: True
• sold: 0
• options: Ship-to-home

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