What is the reference/name of this connector?
That connector type goes by various names: wire-trap, poke-home, push-in and so forth. It’s a solderless connector that’s popular for low-voltage field wiring of controls and security.

The type shown seems to be a 'euro block' connector style. Example: https://www.phoenixcontact.com/online/portal/gb?1dmy&amp;urile=wcm:path:/gben/web/main/products/subcategory_pages/Push-in_connection_P-15-02/868cc764-43df-41cb-9e7d-c2429d2efe8c

Not so sure how reliable they’d be for a motorcycle though, given vibration, weather, temperature concerns. Kind of a crappy design really. Pigtails with weather-tight connectors would be more suitable.