1.1kg 3 Speed Internal Gear Hub OEM 200mm Bicycle Rear Hub Internal Gears

The Manual 3-Speed Internal Gear Hub is designed for city e-bikes, commuter bicycles and utility bike platforms that require stable mechanical shifting, clean rear-wheel integration and reliable daily riding performance. This inside-fork version places the shift control structure within the rear fork area, helping reduce exposed parts around the rear hub while keeping the drivetrain layout compact and protected.

With a 186% total gear range and three practical gear ratios of 0.73, 1.00 and 1.36, this hub supports easier starting, steady city cruising and moderate climbing. The internal planetary gear structure is enclosed inside the hub shell, which helps protect the transmission system from dust, mud, rainwater and external impact compared with traditional exposed derailleur systems.

The LG-N3002-3D version is configured with center lock disc brake compatibility, 142 mm O.L.D. and #13 / #14 spoke support. It is suitable for e-bike and city bike projects that need a manual 3-speed internal gear hub with modern braking compatibility, simple rider control and lower routine maintenance.

• Center-lock disc brake interface for disc brake vehicle platforms
• 142 mm O.L.D. for matching disc brake frame designs
• Sealed internal gear system helps reduce contamination from rain and dust
• Manual 3-speed operation keeps control simple and familiar
• Suitable for city bicycle OEM integration

This manual 3-speed internal gear hub uses a planetary gear mechanism built inside the rear hub shell. The rider changes gears through a matched shifter, and the internal transmission switches between three gear ratios. The low gear supports starting and loaded riding, the direct gear is suitable for normal cruising, and the high gear helps improve pedaling efficiency at higher urban riding speeds.

The inside-fork control layout is one of the main structural advantages of this model. By positioning the shift control structure inside the rear fork area, the hub helps create a cleaner rear-end appearance and reduces the chance of external interference. This makes the product useful for e-bike manufacturers that want a compact manual shifting system without relying on a fully exposed external derailleur.

The center lock disc brake configuration also makes this version more suitable for modern urban e-bike platforms. Combined with its sealed internal gear structure, the LG-N3002-3D offers a practical balance of manual control, drivetrain protection and braking system compatibility.

The LG-N3002-3D manual 3-speed internal gear hub is suitable for city e-bikes, commuter bicycles, utility bikes and short-distance mobility platforms. It is especially useful for vehicle projects that require a clean rear-wheel structure, reliable manual shifting and center lock disc brake compatibility.

For riders, the three-speed gear range provides practical support for starts, cruising and moderate slopes. For OEM bicycle brands, the inside-fork control structure and sealed internal gear design help reduce exposed drivetrain components while maintaining a familiar manual riding experience.

Q1: Is LG-N3002-3D automatic or manual?
A1: LG-N3002-3D is a manual 3-speed internal gear hub. The rider selects gears through a matched shifter, while the gear transmission works inside the sealed rear hub.

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 LG-N3002-3D and LG-N3000-3R?
A3: LG-N3002-3D is the center lock disc brake version with 142 mm O.L.D., while LG-N3000-3R is the roller brake version with 141 mm O.L.D.

Q4: What does inside-fork control mean?
A4: Inside-fork control means the shift controller is positioned inside the rear fork area. This helps create a cleaner rear-end structure and reduces exposure to external interference.

Q5: What brake type does this model support?
A5: This model supports center lock disc brake configuration.

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