The Shimano HB-NX30 connector (ref. Y2SS98030) is an essential original replacement part for fully exploiting the capabilities of your Shimano dynamo hub. Designed to ensure a reliable electrical connection between the generator hub and your bike lighting system, this two-piece connector (grey cap + black cover) offers effective sealing and quick assembly-disassembly of the front wheel, perfect for demanding bike tourists, bike commuters and long-distance cyclists.

Technical Summary

This push-on double-wire connector is designed for Shimano dynamo hubs in the Nexus Inter-L HB-NX series (HB-NX30, HB-NX32) and the DH range (DH-3D35, DH-3N30, DH-1D70, DH-T675, DH-T780, etc.). It provides connection for two stripped wires directly to the hub terminals, enabling power supply to 6 V headlights and taillights via the dynamo hub's electrical output (6 V voltage, typical 3 W power). Its audible click mechanism guarantees secure locking, while the protective cover encases the assembly for optimal protection against water, mud and bad weather.

Technical Highlights

• Universal Shimano compatibility: Fits all Shimano dynamo hubs in the HB-NX and DH families, as well as certain third-party hubs (Shutter Precision).
• Simple and quick installation: Electrical wires are pressed into the cap until an audible click, then the assembly snaps into the cover — no special tools required.
• Maximum protection: The two-piece design effectively protects the connection plug, internal bearings and hub axle against dirt, water and debris.
• Simplified wheel removal: The push-on system allows quick disconnection of wiring to remove the front wheel without manipulating screws or crimping.
• Featherweight: Only approximately 4.5 grams, for negligible contribution to total bike weight.
• Original Shimano part: Guarantees reliability, durability and perfect integration into the Shimano ecosystem.

Applications

This connector is essential for any cyclist equipped with a Shimano dynamo hub: long-distance bike touring, urban bike commuting, bikepacking, audax randonnée, or daily all-weather use. It suits road, gravel, MTB or city configurations equally well, whenever permanent and autonomous dynamo lighting is desired. Compatible with 6 V LED lighting systems (2.4 W front headlight, 0.6 W taillight recommended) and USB chargers for dynamo hubs, it integrates perfectly with modern setups requiring continuous electrical power while pedaling.

Installation and Maintenance

Installation requires no special skills: strip approximately 5 to 7 mm of sheathing from the two wires of your lighting cable, insert them into the grey cap notches until the locking click, then push the cap into the black cover respecting the orientation. Then connect the assembly to the dynamo hub terminal. For maintenance, regularly inspect the connector and seals, clean with a damp cloth, and avoid high-pressure jets that could damage the seals. In case of wear, cracking or loss, replace with this original Shimano part to maintain performance and reliability.

Delivery Contents

The pack includes 1 grey connector cap and 1 black cover. Lighting cables, dynamo hub and other accessories (switch, headlight, taillight) are sold separately. This connector is systematically supplied with new Shimano dynamo hubs, but constitutes a valuable spare part in case of loss, breakage or to have a backup connector during long tours.