Hello. I'm new to the e-bike world and need some help. My son gave me a Ride1Up e-bike the he got when he bought a abandoned storage locker. It is one of their early edition Roadster Ghost models. For some reason the axle and hub motor spun in the frame and twisted the wire loom. The motor no longer powers the bike. I have spoken with Ride1Up and they no longer have parts for this bike. I'm told I need a 48V, 500W motor mounted on a single speed sprocket 26 inch wheel with a 9 pin cable. I've been searching the internet but can't find anything matching those specs. Does anyone have a recommendation where I might look for this item?