...... the 1930's the UK metal industry made a big push for aluminum rods. There were industry ads ............ . Besides some bikes, I don't believe aluminum rods were used in any other engine. The fatigue ............ of alloy rods was not an issue when the bikes were produced. ............ ones when needed... when I found three sets of rods suffering from the same fault, I figured the ............ are the same..I bought new aftermarket rods ,$450.....A lot of money but a broken rod at ............ alot more expensive. And with my luck, the thrown rod locks the rear wheel, the bike goes down and ......