Murray of Ohio manufactured this bike. They used straight guage steel tubing, internally brazed which was an economical way to make a frame. The rear hub is a Shimano 333 unit which uses a plunger rod to select gearing. The rims are chrome plated steel, also a Murray made item. They are stamped EA3 M.O. Mfg., with EA3 designating the compatible tire size. The paint color is called Flamboyant Green, which was a factor in my decision to purchase this one. My pictures don't do the color justice! Thanks for the interest, slowride. By the way, if you noticed, Detroit, Mi. is printed on the downtube decal, as that was home base for S.S. Kresge, owner of Kmart at the time this bike was made. Cheers.