Congrats--Ristar has two e bikes UL certified

This Summer Ristar finally has two of hot models  Rambler and Hummer, approved by UL.

These two model e bikes, battery+controller+motor+display+all wires+speed sensor+brake levers etc all appoved by US UL Lab.

Samples are available and can allow a very short lead time.

Welcome to enquiry Ristar team for more info.