Hi All,
A while ago Julian M built a big capacity A10, CNC machining the cylinder
https://www.a7a10.net/forum/index.php?topic=6024.0I'm sure he did not throw away the CNC program
As he is in the "trade" it would be worth contacting him
I have read about Jer Hill's A65 cylinders on britbike forum they seem to be the business
Currently he is looking for orders to make another batch of 10, 5 speed A65 clusters but is having difficulties getting commitment
Some years ago there was a move to remake cast iron A10 cylinders but the number of reject castings made the proposition uneconomic, as the foundry wanted to be paid even though the castings were unusable
Yes Sure, I would love an alloy cylinder for my A10
John