Audax rides

What constitutes an "audaxy" frame?

I'm lazily looking around for one but the boundaries seem a bit blurred.

As far as I can tell it's:

• Mudguard clearances
  
• "Slightly more relaxed that a road frame" geometry (I have no idea what this means)
  
• Often made of steel (for comfort) but sometimes carbon
  
• Mounts for racks and bottles
  
• Not as long wheelbase as a tourer
  
  

It can mean different things for different people, but what you say is pretty much it for me.

Apart from wheelbase/geometry etc, I have no idea with that.

But provision for full length mudguards and at least 28c tyres, two bottles of water, and lightweight luggage carrying capacity is the key criteria for me.

All about being comfortable and enjoying the ride, at an alright (not necessarily fast pace) and being dry and warm is a big factor in that for me.