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Guangdong Lofandi Intelligent Technology Co.,LTD

  • China,Guangzhou ,Guangdong
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China LG-N7003-2G Automatic 2-Speed Drum Brake Lock Hub For Shared E-Bikes
China LG-N7003-2G Automatic 2-Speed Drum Brake Lock Hub For Shared E-Bikes

  1. China LG-N7003-2G Automatic 2-Speed Drum Brake Lock Hub For Shared E-Bikes

LG-N7003-2G Automatic 2-Speed Drum Brake Lock Hub For Shared E-Bikes

  1. MOQ: TBD
  2. Price: Negotiable
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Delivery Time <20days
Gear Ratios 1.00 / 1.33
Weight 1.3 kg
Drive Compatibility Chain Drive System
Payment Terms T/T,PayPal,L/C,D/A,D/P,Western Union,MoneyGram
Product Type Automatic 2-Speed Chain Drive Hub
Shifting Operation Mechanical Automatic Shifting
Application City e-bikes and low-maintenance bicycle platforms requiring integrated drum brake lock matching.
Supply Ability Ten thousand sets per month
Model LG-N7003-2G
Brake Type Drum Brake Lock
Total Gear Ratio 133%
O.L.D. 135 mm
Chainline G1: 56 mm / G2: 50.8 mm
Packaging Details 1pcs/carton
Waterproof Rating IPX6
Certification RoHS,REACH
Model Number LG-N7003-2G
Brand Name ELEVANDI
Place of Origin GUANGZHOU,CHINA

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  1. Product Details
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Product Specification

Delivery Time <20days Gear Ratios 1.00 / 1.33
Weight 1.3 kg Drive Compatibility Chain Drive System
Payment Terms T/T,PayPal,L/C,D/A,D/P,Western Union,MoneyGram Product Type Automatic 2-Speed Chain Drive Hub
Shifting Operation Mechanical Automatic Shifting Application City e-bikes and low-maintenance bicycle platforms requiring integrated drum brake lock matching.
Supply Ability Ten thousand sets per month Model LG-N7003-2G
Brake Type Drum Brake Lock Total Gear Ratio 133%
O.L.D. 135 mm Chainline G1: 56 mm / G2: 50.8 mm
Packaging Details 1pcs/carton Waterproof Rating IPX6
Certification RoHS,REACH Model Number LG-N7003-2G
Brand Name ELEVANDI Place of Origin GUANGZHOU,CHINA
High Light LG-N7003-2G automatic drum brake hub2-speed e-bike lock hubshared e-bike automatic gear hub
Automatic 2-Speed Drum Brake Lock Hub For Shared City E-Bikes
Product Overview

LG-N7003-2G is the drum brake lock matching version of the A02 automatic 2-speed internal gear hub. It is designed for shared city e-bikes, public-use bicycles and fleet mobility platforms that need simple mechanical automatic shifting, maintenance-free sealed internal gearing and a rear hub structure matched for drum brake lock layouts.

For shared and fleet use, rider operation should be simple. LG-N7003-2G shifts automatically between 1.00 and 1.33 ratios without requiring a manual shifter for normal riding. This helps reduce rider-side gear selection dependency in short-distance, public-use city riding.

Compared with the disc brake A02 versions, LG-N7003-2G uses 135 mm O.L.D., chain drive, 56 mm G1 chainline, 50.8 mm G2 chainline and 30.8 mm brake mounting width. These values should be reviewed carefully with the frame, brake and wheel structure before sampling.

Key Features
  • Shared/Fleet City Mobility Focus
  • Drum Brake Lock Matching For Public-Use Bicycle Platforms
  • Mechanical Automatic 2-Speed Shifting
  • No Manual Shifter Required For Normal Riding
  • 135 mm O.L.D. Chain Drive Rear Hub Structure
  • 1.00 / 1.33 Gear Ratios For Start And Cruise
  • 36H Spoke Hole Number
  • Maintenance-Free Sealed Internal Gear Design
  • IPX6 Waterproof Rating
  • RoHS / REACH Certification
Technology / How It Works

LG-N7003-2G uses the A02 CentriGear mechanical shifting structure. Centrifugal-force triggering and planetary gear operation allow the hub to shift between two internal ratios inside the rear hub body. The low ratio supports easier starting, while the high ratio supports city cruising.

For shared mobility pages, keep the technical language focused on mechanical automatic shifting and drum brake lock matching. Do not describe the product as a smart lock, anti-theft lock, communication module or anti-lock system unless those functions are separately confirmed.

Applications / Usage

This model is best used for city e-bikes and low-maintenance bicycle platforms requiring integrated drum brake lock matching. It is especially relevant for OEM projects where the buyer wants a lower-maintenance alternative to exposed external shifting, but still needs the hub to match a specific brake interface, dropout width and drivetrain line.

Technical Specifications
Parameter LG-N7003-2G
Product Type Automatic 2-Speed Chain Drive Version
Product Category Automatic Gear Hub
Speed Level 2 Speed
Total Gear Ratio 133%
Gear Ratio 1 1.00
Gear Ratio 2 1.33
Brake Type Drum Brake Lock
Spoke Size #13 / #14
O.L.D. 135 mm
Axle Length 180 mm
Chainline G1 56 mm
Chainline G2 50.8 mm
Offset 3.85 mm
Axle Length From Hub, Left 23 mm
Axle Length From Hub, Right 23 mm
Thread Size JIS BC3/8-26
Spoke Hole Diameter 3.2 mm
Spoke Hole Number 36H
Brake Mounting Width 30.8 mm
Color Silver
Matching Belt Cog Not Provided
Average Weight 1.3 kg
Operating / Storage Temperature -30–80℃ / -40–85℃
Waterproof Rating IPX6
Certifications ROHS / REACH
OEM / Fleet Matching Notes

Before sampling, fleet customers and OEM teams should confirm 135 mm O.L.D., drum brake lock layout, 30.8 mm brake mounting width, chainline G1 / G2, spoke specification, wheel build, axle matching, frame clearance and target operating environment.

Frequently Asked Questions
Q: Why is LG-N7003-2G suitable for shared or fleet bicycles?
A: It combines automatic 2-speed mechanical shifting, maintenance-free sealed internal gearing and drum brake lock matching, which makes it suitable for public-use city mobility projects when the frame and brake structure match.
Q: Is LG-N7003-2G a smart lock product?
A: No. On this page, LG-N7003-2G should only be described as an automatic 2-speed internal gear hub with drum brake lock matching. Do not claim smart lock, anti-theft, communication or anti-lock functions unless separately confirmed.
Q: Does it require manual shifting?
A: No. It uses mechanical automatic 2-speed shifting and does not require a manual shifter for normal riding.
Q: What is different from LG-N7000-2D and LG-N7001-2D?
A: LG-N7003-2G uses drum brake lock matching and 135 mm O.L.D. LG-N7000-2D is a 130 mm chain-drive disc brake version, while LG-N7001-2D is a 135 mm belt-drive disc brake version.
Q: Can shift trigger speed or threshold be published?
A: No. Trigger speed and shift threshold are not published on the product page.
Q: What should fleet customers confirm before sampling?
A: Confirm rear frame structure, 135 mm O.L.D., drum brake lock layout, brake mounting width, chainline, spoke specification, wheel build and target operating environment.

Company Details

Bronze Gleitlager

,

Bronze Sleeve Bushings

 and 

Graphite Plugged Bushings

 from Quality China Factory
  • Business Type:

    Manufacturer

  • Year Established:

    2013

  • Employee Number:

    >300+

  • Ecer Certification:

    Verified Supplier

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  • Guangdong Lofandi Intelligent Technology Co.,LTD
  • Room 302, Building B, No. 79 Buling Road, Huangpu District, Guangzhou, Guangdong Province, China
  • https://www.elevandi.de/

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