Originally Posted by PaulRS
You could fit Siebenrock 1000cc conversion kit.
Only barrels and pistons.
These are a straight fit, no use to alter heads, exhaust and carb's, they are designed to work with the std R80 config.
I've fitted them on a mate's R80 hack and was amazed by the way it worked out.
Waiting to be amazed
Knit fast, Die warm.
Seventh Day Adventourist