I'd like an analogue rev counter, in fact I'd prefer that over this DIY one, but I don't see how that'd work on the bike.

Care to enlighten me? who, what and how?

__________________
09 XT660X:

CCC Stainless Rounds, Stage 1 DNA, Stage 2 DNA, PCV With Custom Autotune Map, PCV AutoTune, Home made O2 eliminator, Self machined Fork Spacers, DIY Autotune Switch.