I have the full carbon version of this fitted to my Sabbath September, WITH mudguards it'll do a measured 31mm tyre underneath (28mm Panarcer Evo inflated to 85psi). It's snug but enough space so it's not going to catch with a stone. Without guards I'd reckon a 34mm tyre https://fawkes-cycles.co.uk/tifosi-bikes-tifosi-sr7-carbon-fork-with-mudguard-eyes-p13158
I use TRP957s
good luck
I have the full carbon version of this fitted to my Sabbath September, WITH mudguards it'll do a measured 31mm tyre underneath (28mm Panarcer Evo inflated to 85psi). It's snug but enough space so it's not going to catch with a stone. Without guards I'd reckon a 34mm tyre
https://fawkes-cycles.co.uk/tifosi-bikes-tifosi-sr7-carbon-fork-with-mudguard-eyes-p13158
I use TRP957s
good luck