Sunstar Steel Rear Sprocket 40T 520 Pitch — Fits Yamaha Motorcycles

SKU: FJMF_2-367940
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Car Wheel Size Chart

Wheel Diameter (inches) Tire Width (mm) Aspect Ratio Rim Width (inches)
14185655.5
15195606.0
16205556.5
17215507.0
18225457.5
19235408.0
20245358.5

Note: Wheel and tire sizes vary by car make and model. Always consult your vehicle’s manufacturer for exact specifications.

How to Read Tire Size

Example: 225/45R17 means:

  • 225 = Tire width in mm
  • 45 = Aspect ratio (height as % of width)
  • R17 = Rim diameter in inches

Product Details

Product Description
Part Numbers
Sizing & Fit

About Sunstar

Sunstar engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full Sunstar lineup with fast shipping and expert fitment support — order with confidence.

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Durable Performance: Sunstar 40T Steel Rear Sprocket

Upgrade your motorcycle's drivetrain with the Sunstar 40T 520 Steel Rear Sprocket, specifically engineered for Yamaha performance. Sunstar is a world-renowned leader in sprocket manufacturing, providing OEM-quality components that ensure longevity and consistent power delivery to the rear wheel. This 40-tooth sprocket is crafted from high-grade carbon steel, heat-treated for maximum surface hardness and resistance to wear.

Why Choose Sunstar Steel Sprockets?

  • Precision Manufacturing: Exact tooth profile for smooth chain engagement and reduced friction.
  • High-Strength Carbon Steel: Built to withstand high torque and heavy-duty riding conditions.
  • Optimized 520 Pitch: Designed for weight reduction and efficient power transfer.
  • Long-Lasting Durability: Heat-treated finish prevents premature tooth wear and chain stretch.

Whether you are replacing a worn-out component or adjusting your final drive ratio for better acceleration or top speed, this Sunstar sprocket provides the reliability you need. Its robust construction ensures it can handle the demands of both street riding and track use. By maintaining your drivetrain with high-quality components, you ensure that every ounce of horsepower is effectively transferred to the pavement. Trust in the precision engineering of Sunstar to keep your Yamaha running at its peak performance level. Find all your essential drivetrain upgrades and maintenance parts at GGCRACING.

Product Details

Product Description
Part Numbers
Sizing & Fit

About Sunstar

Sunstar engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full Sunstar lineup with fast shipping and expert fitment support — order with confidence.

Watch in action

Durable Performance: Sunstar 40T Steel Rear Sprocket

Upgrade your motorcycle's drivetrain with the Sunstar 40T 520 Steel Rear Sprocket, specifically engineered for Yamaha performance. Sunstar is a world-renowned leader in sprocket manufacturing, providing OEM-quality components that ensure longevity and consistent power delivery to the rear wheel. This 40-tooth sprocket is crafted from high-grade carbon steel, heat-treated for maximum surface hardness and resistance to wear.

Why Choose Sunstar Steel Sprockets?

  • Precision Manufacturing: Exact tooth profile for smooth chain engagement and reduced friction.
  • High-Strength Carbon Steel: Built to withstand high torque and heavy-duty riding conditions.
  • Optimized 520 Pitch: Designed for weight reduction and efficient power transfer.
  • Long-Lasting Durability: Heat-treated finish prevents premature tooth wear and chain stretch.

Whether you are replacing a worn-out component or adjusting your final drive ratio for better acceleration or top speed, this Sunstar sprocket provides the reliability you need. Its robust construction ensures it can handle the demands of both street riding and track use. By maintaining your drivetrain with high-quality components, you ensure that every ounce of horsepower is effectively transferred to the pavement. Trust in the precision engineering of Sunstar to keep your Yamaha running at its peak performance level. Find all your essential drivetrain upgrades and maintenance parts at GGCRACING.

Product Details

Product Description

About Sunstar

Sunstar engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full Sunstar lineup with fast shipping and expert fitment support — order with confidence.

Watch in action

Durable Performance: Sunstar 40T Steel Rear Sprocket

Upgrade your motorcycle's drivetrain with the Sunstar 40T 520 Steel Rear Sprocket, specifically engineered for Yamaha performance. Sunstar is a world-renowned leader in sprocket manufacturing, providing OEM-quality components that ensure longevity and consistent power delivery to the rear wheel. This 40-tooth sprocket is crafted from high-grade carbon steel, heat-treated for maximum surface hardness and resistance to wear.

Why Choose Sunstar Steel Sprockets?

  • Precision Manufacturing: Exact tooth profile for smooth chain engagement and reduced friction.
  • High-Strength Carbon Steel: Built to withstand high torque and heavy-duty riding conditions.
  • Optimized 520 Pitch: Designed for weight reduction and efficient power transfer.
  • Long-Lasting Durability: Heat-treated finish prevents premature tooth wear and chain stretch.

Whether you are replacing a worn-out component or adjusting your final drive ratio for better acceleration or top speed, this Sunstar sprocket provides the reliability you need. Its robust construction ensures it can handle the demands of both street riding and track use. By maintaining your drivetrain with high-quality components, you ensure that every ounce of horsepower is effectively transferred to the pavement. Trust in the precision engineering of Sunstar to keep your Yamaha running at its peak performance level. Find all your essential drivetrain upgrades and maintenance parts at GGCRACING.

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