Surly says..... The Ogre Fork is non-suspension corrected and will run 29" as well as 27.5" tire options. This fork is designed to run disc brakes, fenders and a rack simultaneously.

Made of 4130 Chromoly, it’s got 51mm IS disc mounts, removable canti pivots, brake-line guides, low-blade threaded barrel bosses, mid-blade eyelets for a rack and dual Three-Pack Mounts on each leg. Whew!

Specifications:
Axle-to-crown: 447mm
Offset: 43mm
Steerer: 285mm, 1-1/8˝ straight
Tire Clearance: 29” x 2.6" (29 x 2.5" with fenders) or 27.5” x 3.0" (27.5 x 2.8" with fenders)
Weight: 1.4kg uncut