M03 Inside-Fork 3-Speed Internal Gear Hub With Center-Lock Disc Brake
| Model: | LG-N3002-3D | Product Type: | M03 Inside-Fork Manual Internal Gear Hub |
| Application: | Urban Bicycle / Disc Brake E-Bike OEM / 142 Mm Rear-Frame Projects | Total Gear Ratio: | 186% |
| Brake Interface: | Center-Lock Disc Brake | Matched Shifter: | LL-3S02E |
| OEM Value: | Defined Disc-brake Interface, Frame, Chainline, Wheel-build And Manual-control Inputs For Project Matching. | Chainline: | G1: 42 Mm / G2: 37.5 Mm |
| Weight: | 1.1 Kg | Waterproof Rating: | IPX6 |
| High Light: | 3-speed internal gear hub with disc brake,M03 inside-fork gear hub,center-lock disc brake gear hub |
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LG-N3002-3D is the M03 inside-fork manual 3-speed internal gear hub for urban rear-wheel projects using a Center-Lock Disc Brake. It combines the 142 mm O.L.D. frame direction with internal three-speed transmission, manual LL-3S02E Twist Shifter matching and an installed disc-brake media set for OEM integration review.
This is not the same product as LG-N3010-3D, the M03 fork-out Center-Lock direction. LG-N3002-3D uses a 142 mm inside-fork layout, 200 mm axle, 1.1 kg average weight and LL-3S02E matching; LG-N3010-3D uses different rear-wheel geometry, axle, weight and project-confirmed shifter selection. Until LG-N3010-3D receives its own verified media set, this page must not link to or reuse an unpublished SKU page.
The hub provides the confirmed 186% range through 0.73, 1.00 and 1.36 ratios. Gear 1 is the low-ratio direction for starts and climbing, Gear 2 is the direct ratio and Gear 3 is the high-ratio direction. This creates a simple manual range for urban riding while keeping the transmission mechanism within the rear hub.
- M03 Inside-Fork Manual 3-Speed System: A source-backed internal gear hub direction for manual rear-wheel integration.
- Center-Lock Disc Brake Interface: Configured for projects using a center-lock disc-brake rear wheel.
- 142 mm O.L.D.: Defines the intended rear-frame spacing direction.
- 186% Three-Speed Range: 0.73, 1.00 and 1.36 ratios support start, direct-ratio and higher-speed riding directions.
- LL-3S02E Twist Shifter Matching: Provides a confirmed manual-control relationship.
- Defined Disc-Project Chainlines: G1 42 mm, G2 37.5 mm and 4 mm offset support integration review.
- Confirmed Wheel-Build Data: #13 / #14 spokes, 3 mm holes and 36H.
- Sealed Internal Gear Direction: Original M03 source describes isolation from mud and rain exposure.
- IPX6 And RoHS / REACH: Confirmed protection and compliance fields.
- OEM Installation Media: Product rendering and installed-disc-brake images support project communication.

| Parameter | Specification |
|---|---|
| Product Name | Manual 3-Speed Internal Gear Hub |
| Model | LG-N3002-3D |
| Product Type | M03 Inside-Fork Version |
| Product Category | 3 Speed Internal Gear Hub |
| Speed Level | 3 Speed |
| Total Gear Ratio | 186% |
| Gear Ratio 1 | 0.73 |
| Gear Ratio 2 | 1.00 |
| Gear Ratio 3 | 1.36 |
| Brake Type | Center Lock Disc Brake |
| Spoke Size | #13 / #14 |
| Matched Shifter | LL-3S02E |
| O.L.D. | 142 mm |
| Axle Length | 200 mm |
| Chainline G1 | 42 mm |
| Chainline G2 | 37.5 mm |
| Offset | 4 mm |
| Axle Length From Hub, Left | 28 mm |
| Axle Length From Hub, Right | 30 mm |
| Thread Size | JIS BC3/8-26 |
| Spoke Hole Diameter | 3 mm |
| Spoke Hole Number | 36H |
| Color | Silver, Customizable |
| Average Weight | 1.1 kg |
| Operating / Storage Temperature | -30–80℃ / -40–85℃ |
| Waterproof Rating | IPX6 |
| Certifications | ROHS / REACH |
The hub applies a general internal planetary gear principle to create three transmission ratios inside the rear hub. Different working relationships among the sun gear, planet gears and ring gear provide the selected ratio while the chain remains on its drive-side line rather than moving across an exposed multi-sprocket cassette.
The LL-3S02E Twist Shifter, cable route and hub-side control should be evaluated as one matched manual-control system. The shifter changes cable tension to select the internal ratio; a generic three-speed control or a third-party shifter must not be assumed compatible.
The M03 source describes a sealed structure intended to isolate mud and rain exposure. LG-N3002-3D has the shared, confirmed IPX6 rating and RoHS / REACH certification. Public copy must not infer an unlisted rotor, lockring, supplied kit, specific maintenance interval or service-life figure.
LG-N3002-3D is configured for a Center-Lock Disc Brake rear-wheel system. This brake interface is the defining difference between this page and the LG-N3000-3R Roller Brake version. It must remain explicit in the title, specifications, media, FAQ and OEM matching checklist.
The M03 inside-fork layout places the shift-controller structure in the rear-fork integration area. Together with the internal gear architecture, this supports an orderly rear-wheel drivetrain direction with fewer exposed transmission components than an external derailleur arrangement. The product page should explain this as an integration feature, not an unverified compactness, impact-proof or universal frame-fit claim.
The confirmed G1 42 mm and G2 37.5 mm chainlines, 4 mm offset and 28 / 30 mm axle-from-hub dimensions give disc-brake OEM teams a defined basis for rear-frame, chain and wheel interface evaluation.

LG-N3002-3D uses three internal ratios: 0.73, 1.00 and 1.36. The 0.73 first gear supports the low-ratio start and climbing direction, the 1.00 second gear is the direct ratio and the 1.36 third gear supports the high-ratio direction. Together, these ratios form the confirmed 186% range.
The manual shift input is provided through the confirmed LL-3S02E Twist Shifter. Rotating the grip downward tensions the shift cable and shifts upward from Gear 1 toward Gear 3. Rotating it upward releases cable tension and shifts downward from Gear 3 toward Gear 1. Briefly reduce pedal pressure during the shift, allow the selected gear to engage and then resume normal pedaling.
The page must describe this as mechanical manual control. Do not write automatic, electronic, AI, CAN, Bluetooth, hub motor or full-load shifting claims.
The public page confirms LG-N3002-3D as the hub model, Center-Lock as the disc-brake interface direction and LL-3S02E as the matched Twist Shifter. The rotor, lockring, shifter and other installation parts are quotation-controlled items rather than automatically included components.
The selected quotation should identify the supplied rotor and lockring, LL-3S02E shifter, sprocket/cog, shift cable and housing, fixing parts, packaging and any project-specific accessories. A product image showing a rotor does not establish the shipment scope.
LG-N3002-3D is suitable for urban bicycle, commuter bicycle and OEM rear-wheel projects that require a manual internal three-speed range with a Center-Lock Disc Brake and 142 mm rear-frame direction. The real installed-disc-brake image provides a model-specific basis for the application section.
The page can support urban e-bike OEM evaluation when the complete brake, frame, wheel-build, cable route and matched shifter system are confirmed. It should not claim universal e-bike fit, third-party control compatibility or specialized shared-fleet validation without project evidence.
ELEVANDI project communication can cover M03 model selection, Center-Lock Disc Brake integration, rear-frame and wheel-build review, LL-3S02E matching and the available inside-fork installation media. Samples, MOQ, lead time, warranty, spare parts and customization follow the formal quotation and order process.
Q: Is LG-N3002-3D manual or automatic?
A: LG-N3002-3D is an M03 manual 3-speed internal gear hub. The rider changes ratio through the matched LL-3S02E Twist Shifter.
Q: What brake configuration does this model use?
A: LG-N3002-3D is configured for a Center-Lock Disc Brake rear-wheel layout. It is not a 6-bolt disc-brake product page.
Q: What is the three-speed range?
A: The total range is 186%, with ratios of 0.73, 1.00 and 1.36. Gear 1 is the low-ratio start/climbing direction, Gear 2 is the direct ratio and Gear 3 is the high-ratio direction.
Q: Which shifter matches LG-N3002-3D?
A: The confirmed matched internal 3-speed Twist Shifter is LL-3S02E.
Q: How does the rider operate the matched Twist Shifter?
A: Rotate the grip downward to tension the shift cable and shift up from Gear 1 toward Gear 3. Rotate it upward to release cable tension and shift down from Gear 3 toward Gear 1. Briefly reduce pedal pressure during a gear change and resume normal pedaling after engagement.
Q: What is the difference between LG-N3002-3D and LG-N3000-3R?
A: LG-N3002-3D is the 142 mm Center-Lock Disc Brake version with G1 42 mm, G2 37.5 mm and 4 mm offset. LG-N3000-3R is the 141 mm Roller Brake version with G1 47 mm, G2 42.5 mm and 1.95 mm offset.
Q: Is LG-N3002-3D the same product as LG-N3010-3D?
A: No. LG-N3002-3D is the 142 mm inside-fork Center-Lock version with a 200 mm axle, 1.1 kg average weight and LL-3S02E matching. LG-N3010-3D is a 115.3 mm fork-out model with different geometry, axle, weight and project-confirmed shifter selection.
Q: Are the Center-Lock rotor and lockring included?
A: The public page confirms the Center-Lock direction. Rotor, lockring and other supplied components follow the selected quotation.
Q: Can LG-N3002-3D be used on an urban e-bike?
A: It can be evaluated for urban e-bike OEM projects when the complete Center-Lock brake, 142 mm frame, wheel-build, LL-3S02E control and cable-routing requirements are confirmed. The page does not claim universal e-bike compatibility.
Q: What should OEM teams provide before sampling?
A: Provide the rear-frame drawing, Center-Lock brake layout, 142 mm O.L.D., chainline target, wheel-build requirement, LL-3S02E control layout, cable route and intended vehicle use.