The On-one 26" carbon fork is 440mm A-C.
Even with 30mm of that taken up by the crown. you get 820mm of tyre diameter clearance.
So you should have 30mm of mud clearance even with a fat 29er tyre.
@Smallfurry 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.
The On-one 26" carbon fork is 440mm A-C.
Even with 30mm of that taken up by the crown. you get 820mm of tyre diameter clearance.
So you should have 30mm of mud clearance even with a fat 29er tyre.