Surly Ogre MTB frameset 27.5+/29' blacktacular XL

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  • Frameset only!

    A steel utility vehicle designed for fully-loaded exploration, whether across town or across the country.

    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

    • Frame: Surly Ogre, Surly 4130 CroMoly steel.
    • Fork: Surly Ogre, TIG-welded 4130 CroMoly, non-suspension corrected, tapered and butted straight blade.
    • Seatpost: Clamp Surly Stainless, 30.0mm (Surly stainless included)


    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
    Fork Length 447 447 447 447
    Fork Rake 43 43 43 43

    • 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 inlcuded), 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)
    • Head Tube: Ø34mm
    • Steerer Tube: Ø28.6mm (1-1/8")
    • Crown Race: Ø30mm (1-1/8")
    • Headset Upper (S.H.I.S.): EC34/28.6
    • Headset Lower (S.H.I.S.): EC34/30
    • Seat Collar: Ø30mm
    • Seatpost: Ø27.2mm
    • 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" (w/o fenders) 27.5 x 2.8" (w/ fenders), 29 x 2.6" (w/o fenders) 29 x 2.5" (w/ 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] N/A Non-suspension correct frame
    [5] Rear disc brake requires Surly’s proprietary brake mount adapter.
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    Factory number:FM0408
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