Thanks hokiefyd...I tried swapping the 23c for 25c to make it less Road Bikie but the clearance between the seat tube and the tire was too tight for my liking.

Thanks freeranger....the Mezzo's I'm using aren't the usual index finger/thumb shift. It a little strange getting used to the dual thumb shifter.
I was initially looking for "friction" shifters and would have sprung for a set you posted. But parts are hard to source these days and at $39CDN for the pair of Mezzos it was a no brainer.....