This is Ogre, Troll’s big wheeled brother sister. Troll and Ogre offer the same ability to accommodate a wide array of drivetrains, brakes, and cargo-hauling accessories. The main difference is that Ogre runs on 29˝ wheels, the Troll on 26˝.
Built of 4130 CroMoly steel and based on the tried-and-true geometry of our venerable Karate Monkey, Ogre is designed to be a platform for exploration, commuting, trailer-pulling, on-road and off-road touring, and just riding along. Ogre features, mounts for linear-pull and disc brakes, three bottle cage mounts (the mounts on the top of the downtube allow higher or lower cage placement depending on your needs), ample room between the stays for high-volume rubber up to 2.5˝, and housing guides designed to accommodate three lines which cleanly organize full shift and brake housing.
Ogre comes with our suspension-corrected (80mm) fork with threaded mounts for fenders and a rack. It will run cantilever or disc brakes so you can choose a system that best suits your stopping needs. Both fork and frame allow the use of a fender, disc brake, and rack at the same time. That’s surprisingly unusual in many modern frames. The fork also sports triple-boss bottle cage mounts, one set on each side. Each cage can be run in a high or low position, or you can run oversized Anything Cages.
The frame is spaced for 135mm hubs, with the same rear-loading horizontal dropouts as our Troll. The dropouts feature a derailleur hanger, slotted disc brake mounts, M10 x 1mm threaded holes for mounting Surly Bill & Ted trailer-connecting hardware (or B.O.B. Nutz), and a dedicated anchoring point for a Rohloff OEM2 axle plate. We designed a ton of versatility into these dropouts so you can run a singlespeed, internally geared hub or full derailleur drivetrain, with disc or rim brakes, with or without racks and fenders, with new or older parts, whatever best serves you. Framesets and complete bikes are available in sizes small through XXL (equivalent to 24˝). The complete bike parts spec is durable and sensible…just the sort of value you expect from a Surly.
If you’re like us, your bike needs will likely change by the day, week, month or year. Ride it to the office during the day, rip some local single-track after work, use it to tote crates of freakishly-large tubers next weekend, and tour that stretch of off-the-beaten-path double-track next month. With Ogre, you can do that.
Select a few bike sizes to compare.
|SIZE||Small (16)||Medium (18)||Large (20)||xLarge (22)||xxLarge (24)|
|Reach||15.5 394.9||16.3 415.1||16.9 428.6||17.3 440.1||17.8 451.7|
|Stack||23.3 591.1||23.7 602.5||24.2 614.0||24.7 628.2||25.3 642.5|
|Head Tube Angle||71.0°||71.5°||72.0°||72.0°||72.0°|
|Head Tube Length||3.5 90.0||3.9 100.0||4.3 110.0||4.9 125.0||5.5 140.0|
|Seat Tube Length||16.0 406.4||18.0 457.2||20.0 508.0||22.0 558.8||24.0 609.6|
|BB Drop||2.7 68.0||2.7 68.0||2.7 68.0||2.7 68.0||2.7 68.0|
|Wheelbase||41.2 1046.1||41.9 1064.9||42.4 1076.8||43.0 1093.0||43.7 1109.2|
|Chainstay Length||17.0 431.0||17.0 431.0||17.0 431.0||17.0 431.0||17.0 431.0|
|Top Tube Length, Actual||22.0 557.7||22.6 575.0||23.2 589.9||23.9 607.1||24.7 627.1|
|Top Tube Length, Effective||22.7 575.6||23.6 599.3||24.3 616.3||24.9 632.2||25.5 648.1|
|Seat Tube Angle||73.0°||73.0°||73.0°||73.0°||73.0°|
|Standover Height||30.0 762.9||31.2 792.7||32.4 822.5||33.6 853.5||34.8 884.4|
|Fork Length||18.4 468.0||18.4 468.0||18.4 468.0||18.4 468.0||18.4 468.0|
|Fork Rake||1.7 43.0||1.7 43.0||1.7 43.0||1.7 43.0||1.7 43.0|
Select a few bike sizes to compare.
|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|
|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|
Surly 4130 Cromoly steel. Main triangle custom double butted. Tig Welded. ED coated.
- Rear Dropouts
Horizontal slotted with derailleur hanger. 145mm Gnot-Boost O.L.D. features Rohloff torque arm slot and threaded eyelets for fenders, racks, and Surly trailer mounts.
- Brake Compatibility
(Disc and rim brake compatible. Disc mounts are 51mm IS Rim brake pivots are removable. Note: rear disc brake is limited to 160mm maximum rotor diameter and requires the use of Surly caliper adapter (included with frames and bikes).
Full-length Surly Trip Guide housing line guides for derailleurs and brakes; two sets of bottle cage mounts; removable post cantilever pivots; upper seatstay threaded barrels, 4 sets of triple bottle mounts, mid-and low-blade fully threaded through-blade fork eyelets; threaded holes for racks, fenders and trailer mounting nuts; Rohloff OEM2 axle plate mounting slot.
- Seatpost Diameter
- Seatpost Clamp Diameter
30mm (Surly stainless included)
- Headset/Steerer Tube
- Front Derailleur Clamp Diameter
31.8mm, top-pull or Shimano high direct mount (adaptor included)
Tanish Gray and Blacktacular:
28.6mm, top-pull or Shimano high direct mount (adaptor included)
- Bottom Bracket Shell
73mm shell width, threaded standard English (1.37" x 24t)
- Chainring Clearance
- Tire Clearance
29 x 2.5" or 27.5 x 3"
TIG-welded tapered & butted 4130 CroMoly, non-suspension corrected, tapered straight blade. Low- and mid-blade fully threaded through-blade rack eyelets; fender mount eyelets at dropout; 1-1/8˝ x 260mm threadless steer tube, 51mm disc mount (180mm max. rotor diameter), removable cantilever pivots, two sets of triple bottle mounts on each fork blade. Note: you can’t always mount bottles on the fork with every rack.
- Thru Axle
HU0134 Surly 12x142/148 Rear Thru Axle
- Ogre Instructions
[pdf] - 744KB
- Rack Fit Guide
[pdf] - 716KB
- Surly Bike Sizing Chart
[pdf] - 308KB
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.