I came across a scrapped early 70s RollFast 3 speed last night The only things worth salvaging was the SA 3 speed hub, both wheels and this strange looking rack on the back of it. I don't know too much about American bikes but I've never seen anything like this on the Canadian side. It measures 9 inches across, a full 4 inches wider then any other rack I have. Two coil springs on either end hold down two arms that pull up in the middle, whatever this rack has in its jaws its not going to let it go, and with the force the arms close it would be painful to have that rack close on your hand. So what is it? Is it a Rollfast product? Some generic after market item? About how old? Thanks for any input...
![rattraprack005.jpg](https://proxy.imagearchive.com/2bd/2bd1a0132757c764968c5f3ab411acab.jpg)
![rattraprack003.jpg](https://proxy.imagearchive.com/dc8/dc83b08db0bee8b1eba107890325061e.jpg)