I'm new to cycling and my 1st bike was a Surly LHT with 26 inch wheels
The intention was to customise the Surly with racks, panniers, mudguards, dynamo lights etc so as to do long Audax rides and LeJog
I used the Surly for several months (mainly for commuting 35-45km/day) and soon realized that it was way too heavy and slow ..... Very comfortable and I would class it as more of a touring type bike to go camping with etc. I had a Gilles Berthoud Aravis sadlle and Schwalbe Marathon Supreme tyres fitted
I sold the Surly for a small profit, and am currently using a Specialized S-Works transition with fully Campagnolo Chorus groupset as my daily commuter and for longer rides. I also own a Giant TCR which I use on occasional Sunday rides.
I'm seriously considering adding a dynamo hub and lights to my S-Works with a handlebar bag and saddle bag and using that for Audax .... it fits me like a glove, super comfy for long rides and it's quick (approx 5km/hr+ faster than the Surly on flats using the same effort, and a lot faster on hills and headwind)
I briefly owned a Koga Miyata RoadChamp for a few weeks but the frame was a bit too big for me ..... That would make a superb bike for Audax as it weighed just under 8kg, could accomdate mudguards and wider tyres