thanks Martin. that looks like a pretty good piece of kit. It would still leave me with the rev counter reading incorrect though.

I could of course go back to my old PCB and blank out the offending bulbs. That would create a problem when MOT comes round of course.

I'm in the process of fiting some new rear hubs with disks, and some new ST front hubs/discs. Both are ebay items, and come with ABS sensors, so I'm going to investigate fitting the rest of the ABS gubbins. My guess is that all of the wiring will be there, just like my electric mirriors/fog lights/heated front screen. We'll see.......

If that fails I'll give the speedohealer a try.