Commuting Internal 3 Speed Hub Wheel Chainline 47MM 42.5MM Cycle Gear Hub

The Manual 3-Speed Internal Gear Hub is designed for e-bikes, city bicycles and utility bikes that require stable gear shifting, clean rear-wheel integration and reduced drivetrain exposure. This model uses an inside-fork shift controller layout, helping create a compact rear-end structure while keeping the shifting mechanism protected within the hub system.

With three practical gear ratios and a 186% total gear range, the hub supports easier low-speed riding, efficient city cruising and better control across common urban road conditions. Compared with exposed external derailleur systems, the internal planetary gear structure keeps the main transmission components enclosed inside the hub shell. This helps reduce exposure to dust, mud, impact and daily riding contamination, making the product suitable for commuting, fleet mobility and practical e-bike platforms.

The LG-N3000-3R version is configured with roller brake compatibility, 141 mm O.L.D. and #13 / #14 spoke support. It is suitable for rear wheel integration projects that need a manual 3-speed drivetrain with reliable mechanical operation and lower maintenance requirements.

• Manual 3-Speed Shifting: Provides direct rider-controlled gear selection for different riding conditions.
• Inside-Fork Control Layout: Keeps the shift controller positioned inside the rear fork area for cleaner integration.
• 186% Gear Range: Offers practical coverage for starting, cruising and moderate climbing.
• Sealed Planetary Gear Hub: Helps protect transmission parts from dust, mud and external impact.
• Roller Brake Compatibility: Designed for vehicle platforms using roller brake rear hub configuration.
• Rear Hub Integration: Reduces exposed drivetrain components compared with external derailleur systems.
• Urban Riding Focus: Suitable for city e-bikes, utility bikes and daily commuting applications.
• IPX6 Waterproof Rating: Supports regular outdoor riding and urban mobility use.

This manual 3-speed internal gear hub uses a planetary gear transmission structure built inside the rear hub. The rider changes gear through a matched shifter, and the internal gear mechanism switches between three ratios: 0.73, 1.00 and 1.36. This gives the bicycle a practical gear range for different riding conditions while keeping the main gear system enclosed.

The inside-fork controller layout is the key structural feature of this model. By placing the shift control structure inside the rear fork area, the hub supports a cleaner rear-end appearance and helps reduce external interference. This design is useful for e-bike and city bike manufacturers that need a stable manual shifting solution without relying on exposed derailleur components.

The sealed hub body also improves daily usability. Since the gear mechanism is protected inside the hub shell, the system is less affected by dirt, water and road debris during regular commuting. For OEM projects, the LG-N3000-3R provides a practical balance between mechanical simplicity, rider control and long-term drivetrain reliability.

The LG-N3000-3R manual 3-speed internal gear hub is suitable for e-bikes, city bicycles, commuter bikes and utility bicycle platforms that require stable manual shifting and a clean rear-wheel drivetrain structure. It is especially useful for urban riding scenarios where reliability, simple operation and reduced external drivetrain exposure are important.

For bicycle brands, the inside-fork control layout helps improve frame integration and protects the shifting control area from external interference. For riders, the three-speed gear range provides practical support for starting, cruising and moderate climbing in daily city use.

Q1: What type of bicycle is this hub suitable for?
A1: This hub is suitable for e-bikes, city bicycles, commuter bikes and utility bicycles that require a manual 3-speed internal gear system.

Q2: Is this model automatic or manual?
A2: This model is manual. The rider selects gears through a matched shifter, while the gear mechanism is enclosed inside the rear hub.

Q3: What is the total gear ratio?
A3: The total gear ratio is 186%. The three gear ratios are 0.73, 1.00 and 1.36.

Q4: What is the main feature of the inside-fork version?
A4: The inside-fork version places the shift controller inside the rear fork area, helping create a cleaner and more protected rear-wheel layout.

Q5: What brake type does LG-N3000-3R support?
A5: LG-N3000-3R is configured for roller brake compatibility.

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