The freewheel is a ratcheting mechanism, that coupled with a set of gears, is that threaded onto the rear hub of a bike. The freewheel allows the rear wheel to engage and move when the pedals are spun forward, but coast freely when the pedals are stationary or spun backwards.
Approx. 3 weeks ago I have found an abandoned frame (including steering wheel, fork, brakes, pedals and shifting gears attached to it). I decided to use it to build a new bicycle since only recently ...
I recently picked this up along with a couple of old wheels. I don't know it's age or history. I've only got as far as identifying it as a Sachs. There are no other markings apart from the logo ...