M03 Drum Brake Manual 3-Speed Internal Gear Hub

LG-N3014-3G is the M03 fork-out manual 3-speed internal gear hub for rear-wheel projects using a Drum Brake and 127 mm O.L.D. Its 48 mm and 43 mm chainlines, 3 mm offset and 26.6 / 36 mm axle-from-hub dimensions establish a focused integration basis for city, utility and shared-bicycle development.

The manual transmission provides 0.73, 1.00 and 1.36 ratios across a 186% range. Riders select the low, direct or high-ratio direction through the approved mechanical control system.

Drum Brake is the defining brake direction for LG-N3014-3G. Brake diameter, actuation, brake arm, cable and included-component scope are not stated in the current authority table and must remain project-confirmed.

The page can explain the hub, brake and shift-control interfaces as one rear-wheel integration problem, but it must not infer heavy-duty performance, cargo load, braking distance or service life.

• Drum Brake M03 fork-out model for 127 mm O.L.D.

• Manual 186% three-speed range.

• 48 / 43 mm chainlines and 3 mm offset.

• External shift-control layout for project-confirmed manual control.

• 189.5 mm axle, 36H and 0.9 kg average weight.

• Sealed internal-transmission direction with IPX6.

• RoHS / REACH confirmed public fields.

The internal planetary gear system provides the three ratios. An approved shifter changes cable position, and the outside-fork control transfers the input to the internal mechanism. The Drum Brake remains a separate braking interface that must be matched and validated within the complete rear wheel.

LG-N3014-3G is positioned for city commuter, utility and shared-bicycle projects using a Drum Brake and 127 mm rear-frame direction. Specialized cargo, high-load or fleet-life claims require separate evidence.

Before sampling, confirm the Drum Brake specification, 127 mm O.L.D., chainline, axle geometry, wheel build, shifter, cable route and intended operating conditions.

LG-N3014-3G has confirmed IPX6 and RoHS / REACH fields. Drum Brake performance, brake diameter, endurance cycles and model-specific inspection criteria require approved project documents. Generic factory or M03 media must not be converted into a heavy-duty or brake-performance claim.

Q: Is LG-N3014-3G an automatic internal gear hub?
A: No. It is a manual mechanical 3-speed internal gear hub.

Q: What Drum Brake size does it use?
A: The current public authority table confirms Drum Brake but does not state the brake diameter. Confirm it during project matching.

Q: How is it different from LG-N3019-3G?
A: LG-N3014-3G is the 127 mm Drum Brake version. LG-N3019-3G is the 135 mm 2715 Brake Lock direction.

Q: Which shifter matches this model?
A: The exact M03 manual 3-speed shifter is confirmed for the project.

Q: Is it approved for heavy cargo use?
A: No heavy-load claim is made on this page. Any specialized load case requires separate validation.