First 'audax' bike

[GrumpyGregry]

It also depends on the framebuilder so it's worth checking first. If thy have maximised the potential of the brakes you'd get 25mm and guards on std brakes and 30mm (Maybe 32mm) on deep drop. The Enigma Etape compared to VN Yukon is a good example of this, std reach brakes and 25mm tyres on the Etape has more clearance than 28mm tyres and long reach on the Yukon.

The bike I'm looking at ships in Shimano Sora guise with Nutrak Skinwall
700x28c tyres so I'm guess 28mm is where it is at. Will ask after half term.