Machined carrier of the cbr900 disk to fit the cb500 hub.
As per retro's advice, I've aquired an 86' gsxr 750 arm, and half way through the sorting so that it fits the honda.
Question retro if you're watching. What did you do for the hardened pivot pin carriers in the bearings in terms of sizes? I've pressed in 14mm shims, but i'd be curious to know.
After this it goes back to the machinist to get the spacers made, a bit of welding and ta daa. Box alloy swingarm.