I was at a bike event yesterday and I got some LED's installed on my R3t (real nice). But I was talking to the guys at Trick Lights and they mentioned that they could do work on any Triumph........ even the new 6 cylinder.
I informed then there was no 6 cylinder from triumph. They told me they heard about it from the Triumph dealer in Houston. Hadn't seen a picture yet, but it was going to be 6 in a V three on each side.....
Could try the sort of config used by VW - not so much a V but close to inline with just enough offset to allow the cylinders to nestle into each other. That's how they got a W8 - 2 banks of very narrow Vs. A 2.8 V6 from my Bora wouldn't be much bigger than our 2.3 triples but has 150KW and 300nM.