Sunstar Steel Rear Sprocket 37t-420 — Fits Honda Motorcycles

SKU: FJMF_2-100837
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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.

Watch in action

Sunstar Steel Rear Sprocket: Precision Engineering for Honda

Experience superior durability and reliable performance with the Sunstar 37t-420 Rear Sprocket. Designed specifically for Honda motorcycles requiring a 420-pitch chain, this high-quality steel sprocket is engineered to withstand the rigors of both track and street riding. Sunstar is renowned for its commitment to precision manufacturing, ensuring each tooth profile is optimized for maximum chain engagement and minimal wear.

Key Features and Benefits

  • High-Strength Steel: Constructed from premium-grade steel for long-lasting performance and resistance to tooth deformation.
  • Optimized 37t Design: Provides the perfect balance of acceleration and top-end speed for your Honda setup.
  • Precision Fitment: Engineered to meet or exceed OEM specifications for a seamless installation.
  • 420 Pitch Compatibility: Specifically machined for 420-series chains to ensure smooth, quiet operation.
  • Corrosion Resistance: Finished with a specialized coating to prevent rust and maintain a clean appearance over time.

Whether you are replacing a worn-out component or fine-tuning your gear ratio for better performance, this Sunstar sprocket delivers the consistency you need. Its robust construction ensures that your power is transferred efficiently to the rear wheel, providing a responsive and reliable ride every time you hit the throttle. Trust the experts at GGCRACING to keep your drivetrain running at peak performance.

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

Sunstar Steel Rear Sprocket: Precision Engineering for Honda

Experience superior durability and reliable performance with the Sunstar 37t-420 Rear Sprocket. Designed specifically for Honda motorcycles requiring a 420-pitch chain, this high-quality steel sprocket is engineered to withstand the rigors of both track and street riding. Sunstar is renowned for its commitment to precision manufacturing, ensuring each tooth profile is optimized for maximum chain engagement and minimal wear.

Key Features and Benefits

  • High-Strength Steel: Constructed from premium-grade steel for long-lasting performance and resistance to tooth deformation.
  • Optimized 37t Design: Provides the perfect balance of acceleration and top-end speed for your Honda setup.
  • Precision Fitment: Engineered to meet or exceed OEM specifications for a seamless installation.
  • 420 Pitch Compatibility: Specifically machined for 420-series chains to ensure smooth, quiet operation.
  • Corrosion Resistance: Finished with a specialized coating to prevent rust and maintain a clean appearance over time.

Whether you are replacing a worn-out component or fine-tuning your gear ratio for better performance, this Sunstar sprocket delivers the consistency you need. Its robust construction ensures that your power is transferred efficiently to the rear wheel, providing a responsive and reliable ride every time you hit the throttle. Trust the experts at GGCRACING to keep your drivetrain running at peak performance.

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

Sunstar Steel Rear Sprocket: Precision Engineering for Honda

Experience superior durability and reliable performance with the Sunstar 37t-420 Rear Sprocket. Designed specifically for Honda motorcycles requiring a 420-pitch chain, this high-quality steel sprocket is engineered to withstand the rigors of both track and street riding. Sunstar is renowned for its commitment to precision manufacturing, ensuring each tooth profile is optimized for maximum chain engagement and minimal wear.

Key Features and Benefits

  • High-Strength Steel: Constructed from premium-grade steel for long-lasting performance and resistance to tooth deformation.
  • Optimized 37t Design: Provides the perfect balance of acceleration and top-end speed for your Honda setup.
  • Precision Fitment: Engineered to meet or exceed OEM specifications for a seamless installation.
  • 420 Pitch Compatibility: Specifically machined for 420-series chains to ensure smooth, quiet operation.
  • Corrosion Resistance: Finished with a specialized coating to prevent rust and maintain a clean appearance over time.

Whether you are replacing a worn-out component or fine-tuning your gear ratio for better performance, this Sunstar sprocket delivers the consistency you need. Its robust construction ensures that your power is transferred efficiently to the rear wheel, providing a responsive and reliable ride every time you hit the throttle. Trust the experts at GGCRACING to keep your drivetrain running at peak performance.

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