IPX6 3 Speed Internal Hub Bicycle RoHS Lightweight Bike Roller Brake

Product Overview

The Manual 3-Speed Internal Gear Hub is designed for city e-bikes, commuter bicycles and utility bike platforms that require reliable manual shifting, sealed drivetrain protection and easier service access. This outside-fork version places the shift control structure outside the rear fork area, making it suitable for bicycle frames that require more accessible adjustment and installation around the rear hub.

With a 186% total gear range and three gear ratios of 0.73, 1.00 and 1.36, the hub provides practical riding coverage for low-speed starts, daily cruising and moderate climbing. The internal planetary gear structure keeps the transmission system enclosed inside the hub shell, helping reduce exposure to dust, mud, water and external impact compared with traditional derailleur systems.

The LG-N3010-3R version is configured with roller brake compatibility, 120 mm O.L.D. and a lightweight 0.9 kg reference weight. It is especially suitable for urban mobility projects that need a simple, durable and easy-to-service manual 3-speed rear hub solution.

Key Features

• Manual 3-Speed Shifting: Allows riders to choose gears directly based on road conditions and riding needs.
• Outside-Fork Control Layout: Provides easier access for installation, adjustment and maintenance.
• 186% Gear Range: Covers starting, cruising and moderate climbing for city riding.
• Roller Brake Compatibility: Suitable for city bike and e-bike platforms using roller brake systems.
• Sealed Planetary Gear Structure: Protects internal transmission parts from dust, water and daily road contamination.
• Lightweight Hub Design: 0.9 kg reference weight supports practical urban bicycle design.
• Rear Hub Integration: Reduces exposed drivetrain components compared with external derailleur systems.
• IPX6 Waterproof Rating: Suitable for outdoor riding and regular mobility use.

Technical Advantages / How It Works

This manual internal gear hub uses a planetary gear mechanism built inside the rear hub. The rider changes gears through a matched shifter, and the hub switches between three internal ratios. The low ratio helps with starting and heavier pedaling conditions, the middle ratio supports normal city riding, and the high ratio improves pedaling efficiency during faster cruising.

The outside-fork controller layout is the key structural feature of this version. Compared with inside-fork control, the outside-fork arrangement provides easier service access and can be more convenient for assembly, adjustment and maintenance. This makes it suitable for OEM projects, fleet bicycles and urban mobility platforms where practical servicing is important.

The sealed gear structure also helps improve durability. Since the main gear mechanism is enclosed inside the hub, it is less exposed to road debris and weather conditions. For city e-bike brands, LG-N3010-3R offers a balance of simple mechanical control, reliable gear protection and service-friendly rear hub integration.

Technical Parameters

Applications

The LG-N3010-3R manual 3-speed internal gear hub is suitable for city e-bikes, commuter bicycles, utility bicycles and shared mobility platforms that require stable manual shifting and practical maintenance access. Its outside-fork control structure makes it especially useful for vehicle designs where installation and service convenience are important.

For riders, the three-speed gear range supports smoother starts, stable cruising and moderate climbing in everyday urban use. For OEM bicycle brands, the sealed internal gear design helps reduce exposed drivetrain parts, while the roller brake configuration and compact rear hub layout support practical city bike integration.

FAQ

Q1: Is LG-N3010-3R an automatic or manual hub?
A1: LG-N3010-3R is a manual 3-speed internal gear hub. The rider changes gears using a matched shifter.

Q2: What is the total gear ratio?
A2: The total gear ratio is 186%. The three gear ratios are 0.73, 1.00 and 1.36.

Q3: What is the main difference between outside-fork and inside-fork versions?
A3: The outside-fork version places the shift control structure outside the rear fork area, making installation, adjustment and maintenance more accessible.

Q4: What brake type does LG-N3010-3R support?
A4: LG-N3010-3R is configured for roller brake compatibility.

Q5: What type of bicycle is this model suitable for?
A5: It is suitable for city e-bikes, commuter bicycles, utility bikes and urban mobility platforms that require manual shifting and a sealed rear hub drivetrain.

Q6: What should be confirmed before using this model in an OEM project?
A6: The frame O.L.D., rear fork structure, brake type, shifter compatibility, chainline, spoke specification and installation space should be confirmed before sampling or production.