Surly Bikes
A steel utility vehicle designed for fully-loaded exploration, whether across town or across the country.
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. 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
Bike Capabilities
- 4/5 with Off Road
- 5/5 with Bikepacking
- 4/5 with Pavement Touring
- 4/5 with Tire Clearance
- 4/5 with Commuting
NOTE: You can ride your bike wherever the hell you want, but this is what we think this bike is best at.
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Where to Buy
Specifications
Build Kit
Frameset
| Frame |
Surly Ogre, Surly 4130 CroMoly steel.
Surly Ogre, Surly 4130 CroMoly steel. Main triangle double-butted. TIG-welded |
|---|---|
| Fork |
Surly Ogre, TIG-welded 4130 CroMoly, non-suspension corrected, tapered and butted straight blade.
Surly Ogre, TIG-welded 4130 CroMoly, non-suspension corrected, tapered and butted straight blade. Low- and mid-blade fully threaded through-blade rack eyelets; fender mount eyelets at dropout; 1-1/8˝ x 285mm threadless steer tube, 51mm disc mount (203mm max. rotor diameter), line/housing guides; two sets of bottle cage mounts, each height adjustable (note: cages cannot be used on fork with some racks, and vice versa) |
| Seatpost Clamp | Surly Stainless, 30.0mm (Surly stainless included) |
Components
| Headset | Cane Creek 10, 1-1/8˝ |
|---|---|
| Brakes | ProMax DSK-300, 160 rotors |
| Brake Levers | Avid FR-5 |
| Shifters | Microshift SL-M760R |
| Stem | ProMax 31.8, 4 bolt |
| Handlebar | Salsa Bend |
| Grip/Tape | Velo Lock-on |
| Saddle | WTB Volt Sport |
| Seatpost | ProMax 27.2, 300L, offset |
Drivetrain
| Crankset | SRAM NX 32T |
|---|---|
| Bottom Bracket | SRAM Powerspline |
| Front Derailleur | N/A |
| Rear Derailleur | Shimano Deore RD-M6000 |
| Cog or cogset | Microshift 10 spd, 11-42t |
| Chain | KMC x10 |
Wheels
| Front Hub | Novatec 32h QR |
|---|---|
| Rear Hub | Novatec 32h QR |
| Rims | WTB i29 Black |
| Tires | Surly Extra Terrestrial 29x2.5" TCS |
Geometry
units:
- in
- mm
| SM | MD | LG | XL | |
|---|---|---|---|---|
| Reach | 15.6 395.5 | 16.2 410.5 | 16.8 427.6 | 17.6 447 |
| Stack | 23.3 592 | 23.8 603.4 | 24.1 613 | 24.9 632 |
| Head Tube Angle | 71.5° | 72.0° | 72.0° | 72.0° |
| Head Tube Length | 4.3 110 | 4.7 120 | 5.1 130 | 5.9 150 |
| Seat Tube Length | 16.0 406.4 | 18.0 457.2 | 20.0 508 | 22.0 558 |
| BB Drop | 2.7 68 | 2.7 68 | 2.7 68 | 2.7 68 |
| Wheelbase | 41.3 1049.4 | 41.9 1064.5 | 42.7 1084.6 | 43.7 1110 |
| Chainstay Length | 17.3 440 | 17.3 440 | 17.3 440 | 17.3 440 |
| Top Tube Length, Actual | 21.5 545.6 | 22.1 560.7 | 22.8 580.2 | 23.9 607 |
| Top Tube Length, Effective | 22.6 575 | 23.4 595 | 24.2 615 | 25.2 640 |
| Seat Tube Angle | 73.0° | 73.0° | 73.0° | 73.0° |
| Standover Height | 30.1 763.5 | 31.3 795.7 | 32.5 824.5 | 33.8 857.85 |
| Stem Length | 2.8 70 | 3.1 80 | 3.5 90 | 3.9 100 |
| Stem Angle | 6° | 6° | 6° | 6° |
| Handlebar Width | 27.6 700 | 29.1 740 | 29.1 740 | 29.1 740 |
| Crank Length | 6.7 170 | 6.9 175 | 6.9 175 | 69 175 |
| Fork Length | 17.6 447 | 17.6 447 | 17.6 447 | 17.6 447 |
| Fork Rake | 1.7 43 | 1.7 43 | 1.7 43 | 1.7 43 |
Frame Specifications
| 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) 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 (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.
FAQ & Reviews
Support
Downloads
- Ogre Frame Sheet
[pdf] - 432KB - Ogre Fork Instructions
[pdf] - 541KB - Surly Bike Sizing Chart
[pdf] - 308KB
Frame Warranty
LIMITED WARRANTY
This Surly product is warranted against defects in materials and workmanship for three years from the date of retail purchase of the product, subject to the limitations detailed below. Save your dated receipt for proof of purchase.
This warranty does NOT cover the following:
- Damage due to improper assembly or follow-up maintenance or lack of skill, competence or experience of the user or assembler
- Products that have been modified, neglected, used in competition or for commercial purposes, misused or abused, involved in accidents or anything other than normal use
- Installation of components, parts or accessories not originally intended for or compatible with bicycle as sold
- Damage or deterioration to the paint, surface finish, aesthetics or appearance of the product
- Normal wear and tear
- Labor required to remove and/or refit and re-adjust the product within the bicycle assembly
This limited warranty is expressly limited to the repair or replacement of a defective product, at the option of Surly, and is the sole remedy of the warranty. This limited warranty applies only to the original purchaser of the Surly product and is not transferrable. This warranty applies only to products purchased through an authorized dealer or distributor. In no event shall Surly be liable for any loss, inconvenience or damage, whether direct, incidental, consequential, or otherwise resulting from breach of any express or implied warranty or condition, of merchantability, fitness for a particular purpose, or otherwise with respect to our products except as set forth herein.
This limited warranty gives the consumer specific legal rights, and those rights and other rights may vary from place to place. This limited warranty does not affect your statutory rights.
TO THE EXTENT NOT PROHIBITED BY LAW, THESE WARRANTIES ARE EXCLUSIVE AND THERE ARE NO OTHER EXPRESS OR IMPLIED WARRANTIES OR CONDITIONS INCLUDING WARRANTIES OR CONDITIONS OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.