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Brand New 428 (1/2 pitch) 
Sprocket 38 T
+
Free Wheel Adapter (Ratchet effect)
+
3/4" (19.5mm) Hub Axle adapter


The Alfa Wheels 38T #428 Sprocket drive gear chain wheel is designed for electric scooters and features a durable construction suitable for outdoor sports. With 4 holes for easy installation, this black sprocket is compatible with various models of electric scooters. This axel sprocket is a reliable and high-quality component for enhancing the performance of your eATV Quad GoKart DIY cart.


Sprocket specifications:
  • Chain Wheel 38 Teeth for 428 chain
  • Ideal for DIY go-kart, scooter, cart, trike
  • 428 Sprocket Can Only Work With 428 Type Chain
  • Please make sure your Bike uses a 428 Sprocket 
  • Package Includes: 1 Piece Rear Sprocket

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Hub Axel Adapter specifications:

  • Comes with its set screw
  • Threads into our free wheel adapters
  • External threads are 35mm x 1.25
  • 3/4" (19.5mm) 
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Free Wheel Adapter specifications:


  • Compatibility:  This toothless free wheel is used for electric scooters and has no teeth. Applicable sprocket: Electric scooter deceleration sprocket 38T (420), etc. Applicable models: electric scooter, bicycle.
  • Easy Operation:  The Electric scooter free wheel is convenient to install and use, sturdy and durable., stable performance, simple operation.
  • Professional Manufacturing: The Electric scooter free wheel is a product of professional manufacturing and meticulous planning, high strength and durability, provide good usage experience.
  • After-sales service:   We are committed to providing premium products and considerate services. If you have any questions about our products, our professional customer service team will solve your problems in a timely manner.


Brand new with warranty
We also sell other electric scooter parts and mini Bikes 
Most orders ship same day from our warehouse 

Warranty: 1 Year

The Sprocket drive gear chain wheel #428 38T 4 hole with Free ratchet Hub 3/4" adapter is a high-quality, durable chain wheel designed for electric go-karts. Made by Alfa Wheels, this black chain wheel is suitable for outdoor sports enthusiasts looking to upgrade their go-kart with a reliable and efficient sprocket drive gear. The 4 hole design and 3/4" adapter ensure easy installation and compatibility with various models of electric go-karts, making it a versatile and essential accessory for sporting goods enthusiasts.