for Shimano DI2 EC300 USB-C Charger Adapter | 4-Pin to Type-C Converter for 12-Speed Electronic Derailleurs | Compact Emergency Bike Charging Cable for Road/Mountain Bikes

In March 2025, we spotted a gap—Shimano’s 12-speed DI2 systems lacked universal charging. We answered with originality: creating the first 4-pin-to-Type-C adapter for Shimano, redefining on-the-go bike power.

April: Version 1.0 launched—the world’s first adapter to let DI2 users charge via Type-C (phone chargers, power banks). A paradigm shift, but we chased better.

June: Version 2.0 upgraded—reinforced interfaces for stability, plus industry-first overheat/short-circuit protection. Reliability, redefined.

August: Version 3.0 arrived—the smallest (0.4in/10mm) Shimano DI2 Type-C adapter, with seamless R9200/R8100/R7100 compatibility.

This is just start. We’ll keep iterating (smart tech, eco-materials, wider compatibility) to lead—and draw more riders to the brand that started the Shimano Type-C revolution.