Pake track fork
A rugged 1 1/8" threadless straight blade fork with added clearance for big tires. 32mm knobbies fit so you could probably stuff some 35mm road tires in there without much fuss..
If brakes are your thing, you'll need a caliper with at least 57mm of reach.
• cro-mo steel construction
• 1 1/8" threadless
• rake: 38mm
• axle to crown: 391mm
• drilled for a brake
• clearance for up to 35mm tires
• color: matte black
• weight: 1150g w/ uncut steerer