6 Bolt Chain Drive Automatic Gear Hub For Bicycle OEM 6 Bolt

The Chain Drive Automatic Gear Hub is designed for city e-bike brands, OEM procurement teams and product development projects that need an automatic internal gear hub for practical chain-drive platforms. Based on LG-N7118-3D from the A03 automatic 3-speed internal gear hub series, this page focuses on chain-drive procurement, city e-bike matching and rear hub drivetrain integration.
For city e-bike brands, chain drive remains a familiar and widely used drivetrain direction. LG-N7118-3D supports this procurement need by combining a chain-drive rear hub layout with CentriGear automatic mechanical shifting. Riders can use the bike in everyday city conditions without operating a handlebar shifter, while OEM teams can keep a conventional chain-drive platform.
For OEM buyers, the main value is a source-backed automatic gear hub option that can be reviewed during city e-bike model development. The hub uses sealed internal gearing, 6-bolt disc brake support and chain sprocket matching, making it suitable for brands that need automatic shifting without moving away from chain-drive frame architecture.

• Chain-Drive Procurement Focus: Designed for city e-bike brands that need automatic shifting while keeping a practical chain-drive platform.
• LG-N7118-3D Reference Model: Uses the A03 chain-drive automatic internal gear hub as the source-backed product basis.
• CentriGear Automatic Shifting: Supports automatic mechanical gear changes without rider-operated handlebar shifting.
• City E-Bike Brand Matching: Suitable for OEM product teams developing commuter and urban e-bike models.
• Conventional Drivetrain Fit: Keeps chain-drive architecture available while adding automatic internal gear hub functionality.
• Sealed Rear Hub Structure: Keeps the main gear mechanism inside the rear hub shell for cleaner drivetrain integration.
• 6-Bolt Disc Brake Support: Matches modern city e-bike rear-wheel disc brake layouts.
• OEM Procurement Review: Final use should confirm chainline, sprocket matching, brake interface, frame structure and installation clearance.

LG-N7118-3D uses CentriGear automatic mechanical shifting with planetary gear transmission. As riding speed changes, the internal mechanism shifts automatically inside the rear hub, helping riders focus on pedaling and traffic conditions instead of manual gear selection.
The chain-drive configuration is the key buyer-intent focus for this page. It gives city e-bike brands an automatic internal gear hub direction while keeping a familiar chain-drive rear wheel layout. This can be useful for OEM projects that already use chain-drive frame architecture and need a practical upgrade path toward automatic shifting.
For procurement review, chainline and sprocket matching should be checked together with brake interface, frame structure and wheel specification. LG-N7118-3D should be selected when the city e-bike platform is designed around chain drive and needs A03 automatic internal gear hub functionality.

LG-N7118-3D is suitable for city e-bike brands, commuter e-bike OEM projects, chain-drive urban bicycle platforms and procurement programs that require automatic internal shifting with a practical rear hub layout.
It is especially useful for projects where the brand wants to maintain chain-drive architecture while adding automatic shifting, sealed hub protection and a modern disc brake rear-wheel configuration.

Before sampling or production, OEM customers should confirm chainline, chain sprocket matching, brake interface, frame O.L.D., rear fork structure, wheel specification, spoke specification, installation clearance and final image/SKU matching.

Q: What is the main buyer intent of this product page?
A: The page is focused on chain-drive automatic gear hub procurement for city e-bike brands and OEM projects.
Q: Is LG-N7118-3D a belt-drive hub?
A: No. LG-N7118-3D is the chain-drive direction. Belt-drive A03 projects should review LG-N7122-3D instead.
Q: Is this an automatic or manual gear hub?
A: LG-N7118-3D is an automatic internal gear hub using CentriGear mechanical shifting.
Q: What brake interface does this model use?
A: The reference parameter table lists 6-bolt disc brake support.
Q: What is the backend product category?
A: The backend product category should be Automatic Gear Hub.
Q: What should be confirmed before OEM sampling?
A: Confirm chainline, sprocket matching, brake interface, frame O.L.D., wheel specification and installation clearance before sampling.