I was hoping for something like 2.0
A Surly straggler would sort you out, but you probably already know this.
A 2.0 tyres is basically 50mm though, AFAIK the Surly max is 42mm.
42mm is about 1.6.
...hence sticking in a pair of 650b wheels, giving space for 2" tyres...
Straggler with 29x2.0...
Might just be enough clearance for mudguard at the front, not rear unless you run SS/fixed.
@edscoble started
London Fixed Gear and Single-Speed is a community of predominantly fixed gear and single-speed cyclists in and around London, UK.
This site is supported almost exclusively by donations. Please consider donating a small amount regularly.
A Surly straggler would sort you out, but you probably already know this.