Since a few chain adjustments I noticed that the left hand side of the handlebars was starting to feel a bit further forward than the right when riding in a straight line. Setting up a make shift wheel alignment jig using a length of aluminum angle & a straight piece of timber running the length of the bike & the width of the back wheel showed the wheels were out of line.
I have found that trying to read the markings on the swing arm from the square blocks that the axle runs through is a bit vague. A dig around in the jar full of junk that will probably come in handy one day I found some bits of metal from an aluminum picture frame, cut and bent into shape to form a more easy to read marker.



Fixed on the bike goes something like this...



Hopefully this should take a little bit of guess work out of wheel adjustments now.

Brilliant little mod Desert Racer. ...these free / super practical mods are great!. I've never understood why manufacturers don't make the chain adjustment markings more visible. We have 'stylish' and obvious adjusters on levers etc..why not here. It would probably help /encourage people to keep their chains adjusted. Steve