I picked up an old adult tricycle to restore at a yard sale. It needs plenty of work and needs a bunch of new parts (spokes, fenders ect.), however I do not know anything about the tricycle except for the serial number that was found on the headtube. The numbers being HC0755083, I have seen no other identifiable markings, leaving me to wonder if it is perhaps a custom made tricycle. Any help would be greatly appreciated!
Most bike shops have access to parts for adult trikes, no matter who the manufacture was, taking the trike in is always a plus (I know it's a hassle) but call first to make sure your working with a shop willing to help you before you haul it in. I've sent a message with the serial # to one of my vendors to see if it's one of their models (I'll respond later with an answer), no matter; adult trikes used pretty standard bike parts. please upload Pics I'd like to see it. later,
Sun trikes informed me that it's not one of theirs, and by seeing the pics it's probably not a (professional) custom built. you should be able to find parts for it, just make sure the frame isn't compromised or it's just not worth fixing, you can buy a new one for 300-500 US. I hope this helps & if you do decide to get rid of it gift it to a local bicycle collective they maybe able use parts off it.
HC start to the serial number is for Huffy Corp. . The front sprocket styling is common Huffy style . Likely mid/late 60's or early 70's production . Are the tires 24 x 1 3/8 ? these should be available at bike shops . If your rear wheels have 28 spokes this is a lighter duty unit and replacement rims could be hard to find . Commonly equipped with a Shimano 3 speed coaster brake mid-hub and a Peerless differential (used on lawn equipment and go-karts ) yes 2 wheel drive . Good luck and happy hunting for restoration parts , patience too .