Universal Parts 10mm Speedometer Hub: Bintelli & 139QMB

Universal Parts 10mm Speedometer Drive Hub

Restore your dashboard's functionality and ensure accurate speed readings with the Universal Parts Speedometer Hub. Designed for 50cc scooters with a 10mm front axle, this drive gear is a precision-engineered replacement for worn or stripped factory units. Whether your needle is "bouncing" or completely dead, this hub provides the mechanical link needed to keep your speedometer responsive and reliable.

Technical Performance Features

• OEM-Spec Precision: A direct replacement for Taizhou Zhongneng (ZNEN) part number 44800-XSG-9000-A/B, ensuring factory-perfect fitment and gear ratios.
• Durable Internal Gearing: Features hardened internal drive gears designed to resist the wear and friction that typically causes speedometer failure.
• Weather-Resistant Housing: Sealed design helps prevent road grit, dust, and moisture from entering the gear assembly, extending the life of your speedometer cable.
• Standard Threading: Equipped with a universal 12mm thread for seamless connection to standard 50cc speedometer cables.

Comprehensive Fitment Guide

This hub is specifically designed for 139QMB-based scooters utilizing a 10mm diameter front axle:

Technical Specifications

• Axle Hole Diameter (ID): 10mm
• Cable Thread Diameter: 12mm
• Hub Outer Diameter: 47mm
• Manufacturer: Universal Parts

Mechanic's Note: Speedometer hubs usually fail because the internal gears go dry or the cable seizes.

Verification Tip: 50cc scooters use either a 10mm or 12mm axle—please measure your axle diameter before ordering to ensure a perfect fit.

Pro Tip: When installing, apply a liberal amount of High-Temp Lithium Grease inside the gear housing and on the cable end to ensure smooth operation and prevent future stripping!

SKU: 144-39
Vendor: Scooterworks USA, LLC

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