Mine may well be the older model. I got it a year ago. I don't remember the name of the store, but I found them by googling just the model number-- in your case that would be SG-8R36. That brings up quite a few results. The lowest price, ebikestop, sounds familiar, that's probably where I got mine. But that's not even a dollar cheaper than aebike, hardly worth it. I vote for aebike.