1957 Asama YD-A Barrels and Crank
The quality of the crank machining is much better than the production bikes and the attention to detail of the knife edge polished conrods is superb.
Below. The matched pair of 54mm YD-A barrels reunited., P no 7. One barrel came with the bike, the other came from Sonny Angel via his son in law. Another pointer to where my bike came from !