Sunstar Aluminum Rear Sprocket 38T-520 — Fits Yamaha Motorcycles

SKU: FJMF_5-354038
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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.

Precision-Engineered Sunstar 38T Rear Sprocket

Maximize your Yamaha's drivetrain efficiency with the Sunstar 38T Aluminum Rear Sprocket. Built for the 520 chain pitch, this sprocket is the ideal choice for riders looking to optimize their gear ratios for specific track conditions. By utilizing high-strength aluminum, Sunstar has created a component that minimizes rotational mass, allowing for quicker acceleration and improved handling characteristics.

Why Choose Sunstar Aluminum?

  • Optimized Tooth Profile: Designed for maximum chain engagement and reduced friction.
  • Weight Reduction: Lighter than stock steel sprockets to decrease unsprung weight.
  • Durable Aluminum Alloy: Engineered to withstand the rigors of high-performance riding.
  • Yamaha Specific Fitment: Guaranteed compatibility for specified Yamaha models using a 520 pitch chain.

The 38T count is perfect for riders seeking higher top-end speed or specific gearing adjustments for long straights. The precision-cut teeth ensure that your chain runs smoothly, extending the life of your entire drivetrain system. At GGCRACING, we understand that every gram counts when you are chasing the podium. This sprocket is not just a replacement part; it is a performance upgrade designed to help you extract the most out of your Yamaha. Maintain your machine with the best parts available 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.

Precision-Engineered Sunstar 38T Rear Sprocket

Maximize your Yamaha's drivetrain efficiency with the Sunstar 38T Aluminum Rear Sprocket. Built for the 520 chain pitch, this sprocket is the ideal choice for riders looking to optimize their gear ratios for specific track conditions. By utilizing high-strength aluminum, Sunstar has created a component that minimizes rotational mass, allowing for quicker acceleration and improved handling characteristics.

Why Choose Sunstar Aluminum?

  • Optimized Tooth Profile: Designed for maximum chain engagement and reduced friction.
  • Weight Reduction: Lighter than stock steel sprockets to decrease unsprung weight.
  • Durable Aluminum Alloy: Engineered to withstand the rigors of high-performance riding.
  • Yamaha Specific Fitment: Guaranteed compatibility for specified Yamaha models using a 520 pitch chain.

The 38T count is perfect for riders seeking higher top-end speed or specific gearing adjustments for long straights. The precision-cut teeth ensure that your chain runs smoothly, extending the life of your entire drivetrain system. At GGCRACING, we understand that every gram counts when you are chasing the podium. This sprocket is not just a replacement part; it is a performance upgrade designed to help you extract the most out of your Yamaha. Maintain your machine with the best parts available 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.

Precision-Engineered Sunstar 38T Rear Sprocket

Maximize your Yamaha's drivetrain efficiency with the Sunstar 38T Aluminum Rear Sprocket. Built for the 520 chain pitch, this sprocket is the ideal choice for riders looking to optimize their gear ratios for specific track conditions. By utilizing high-strength aluminum, Sunstar has created a component that minimizes rotational mass, allowing for quicker acceleration and improved handling characteristics.

Why Choose Sunstar Aluminum?

  • Optimized Tooth Profile: Designed for maximum chain engagement and reduced friction.
  • Weight Reduction: Lighter than stock steel sprockets to decrease unsprung weight.
  • Durable Aluminum Alloy: Engineered to withstand the rigors of high-performance riding.
  • Yamaha Specific Fitment: Guaranteed compatibility for specified Yamaha models using a 520 pitch chain.

The 38T count is perfect for riders seeking higher top-end speed or specific gearing adjustments for long straights. The precision-cut teeth ensure that your chain runs smoothly, extending the life of your entire drivetrain system. At GGCRACING, we understand that every gram counts when you are chasing the podium. This sprocket is not just a replacement part; it is a performance upgrade designed to help you extract the most out of your Yamaha. Maintain your machine with the best parts available at GGCRACING.

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