Chain reactions!
Last time I'd lined up the wheels and got the chain to run fairly true with a lot of measuring and a bit of machining.
As a slight aside a mate of mine uses long fluorescent tubes as straight edges to align his wheels. He does a lot of track days and is quick, so although it's not a method I've come across before I can see how it works. At some point I'm going to investigate how I can use my DeWalt laser level to achieve this function and report back if it's successful. There're a lot of much cheaper lasers on the market and it may be a way of making a useful tool.
The chain run was clearly a
