Here is one from Luna Cycle that looks pretty good. https://lunacycle.com/sur-ron-x-bike-black-edition/?mc_cid=2cffe42b67&mc_eid=7f1f37f70a I have bought electric bike kits (four bikes so far) and batteries from them for the last 5 years. I would say they are the most knowledgeable shop for these in the country. They are great for DIYers or complete electric bikes. Also sell the best battery packs and chargers (safe and reliable). These guys know what they are doing.