• Surly Ogre bike side view in Champagne Supernova color
  • Surly Ogre bike side view in Cold Slate Blue color
  • Surly Ogre bike side view in Pile of Bricks color
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Ogre

Ogre

⚠️ WARNING: This product can expose you to chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

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A Versatile All-Season Commuter Bike

If you’re like us, your bike needs likely change by the day, week, month or year. Quite the adaptable little beast, Ogre can get you to your job during the week, then way out of town on the weekend. It’s not sluggish on pavement or gravel and can also hold its own on singletrack.

Ogre is designed to be the ultimate steel utility vehicle. It relishes in those “take-the-long-way-home-and-find-some-beverages-along-the-way” sort of commutes. Snow, sleet or sweltering humidity, this is an ideal year-round commuter bike. You can also haul enough crap on it that you don’t even have to go home if you don’t want to.

  • All the barnacles you could ever possibly ask for including rack and fender, multiple three-pack mounts and mid-blade.
  • Gnot-Boost rear spacing with Rohloff torque arm slot and Bill/Ted trailer mount
  • Clearance for 29” x 2.5” or 27.5" x 2.8" tires with fenders

Specifications

Geometry

Geometry Diagram
SIZE SM MD LG XL
Reach 395.5 410.5 427.6 447
Stack 592 603.4 613 632
Head Tube Angle 71.5° 72.0° 72.0° 72.0°
Head Tube Length 110 120 130 150
Seat Tube Length 406.4 457.2 508 558
BB Drop 68 68 68 68
Wheelbase 1049.4 1064.5 1084.6 1110
Chainstay Length 440 440 440 440
Top Tube Length, Actual 545.6 560.7 580.2 607
Top Tube Length, Effective 575 595 615 640
Seat Tube Angle 73.0° 73.0° 73.0° 73.0°
Standover Height 763.5 795.7 824.5 857.85
Stem Length 70 80 90 100
Stem Angle 6° 6° 6° 6°
Handlebar Width 700 740 740 740
Crank Length 170 175 175 175
Fork Length 447 447 447 447
Fork Rake 43 43 43 43

Frame Specs

  • Frame Construction: 4130 Chromoly, Natch tubing, double-butted main triangle, TIG welded, ED coated
  • Fork Construction: 4130 Chromoly, Natch tubing, double-butted tapered fork blades, TIG welded, ED coated
  • Rear Dropout Configuration: Horizontal slotted with optional vertical dumpout
  • Rear Hub Spacing: "Gnot-Boost" 145mm; 12 x 142mm or 12 x 148mm (axle not included); 10 x 135mm with Surly 10/12 Adapter Washers (included)
  • Front Hub Spacing: 10 x 100mm
  • Rear Brake: Disc - 51mm I.S. (160mm max rotor) [5]; Rim - Canti (removable posts)
  • Front Brake: Disc - 51mm I.S. (203mm max rotor); Rim - Canti (removable posts)
  • Head Tube: Ø34mm
  • Steerer Tube: Ø28.6mm (1-1/8")
  • Crown Race: Ø30mm (1-1/8")
  • Stock Headset Upper (S.H.I.S.): EC34/28.6
  • Stock Headset Lower (S.H.I.S.): EC34/30
  • Seat Collar: Ø30mm
  • Seatpost: Ø27.2mm
  • Front Derailleur (Clamp): High direct mount top-pull
    (Ø31.8mm); 26mm offset adapter (not included) for 142 or 135mm rear hub
    spacing; 29mm offset adapter (not included) for 148mm rear hub spacing
  • Max Chainring (CL)[3]: 1x (Mtn): 42T; 2x (Mtn): 34/46T; 3x (Mtn): 24/36/48T; 1x (Boost): 46T; 2x (Boost): 42/48T
  • Bottom Bracket: 73mm threaded (1.37" x 24TPI)
  • Tire Clearance Frame [1]/[2]: 27.5 x 3.0” (27.5 x 2.8" with fenders); 29 x 2.6" (29 x 2.5" with fenders)
  • Tire Clearance Fork [1]: 27.5 x 3.0" (27.5 x 2.8" with fenders); 29 x 2.6" (29 x 2.5" with fenders)
  • Rigid Fork Spec: 447 x 43mm
  • Max Suspension Fork Length [4]: N/A
  • Bottle Mounts Frame: 2 Three-Pack (XS); 1 Standard + 2 Three-Pack (S - XL)
  • Bottle Mounts Fork: 4 Three-Pack
  • Rack Mounts Frame: Yes (upper and lower threaded)
  • Rack Mounts Fork: Yes (upper, lower, and mid-blade threaded)
  • Fender Mounts Frame: Yes
  • Fender Mounts Fork: Yes
  • Other Features: Dedicated Rohloff cable routing and mount for OEM 2 axle plate; Dedicated Surly Trailer mounts

[1] Different tire and rim combinations will result in different clearances.  
[2] Depending on drivetrain configuration, tire clearance may be limited by the chain and not frame.
[3] Listed chainring clearance is worst case scenario.  Clearances vary widely depending on components and configurations.
[4] Suspension fork length listed at full extension (not at sag)
[5] Rear disc brake requires Surly’s proprietary brake mount adapter.

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