NEW Surly Ogre Adventure Gravel Bike - 29", Steel, Fermented Plum - 210000055725

NEW Surly Ogre Adventure Gravel Bike - 29", Steel, Fermented Plum - 210000055725

The 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 brings several sensible features to the 29er platform, including horizontal slotted dropouts with Gnot-Boost spacing, a tweaked non-suspension corrected geometry, and a beefy tire clearance.

Features                    

• 100% Surly Chromoly steel, double-butted main triangle
• TIG-welded, Horizontal slotted with derailleur hanger, Gnot-Boost spacing allows the use of 135mm QR hub, 142 x 12mm thru-axle or 148 x 12mm Boost hubs. Features Rohloff torque arm slot and threaded eyelets for fenders, racks and Surly trailer mounts
• Full-length Surly Trip Guide housing line guides for derailleurs and brakes; two sets of bottle cage mounts; upper seatstay threaded barrels, 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
• Disc brakes only. Disc mounts are 51mm IS. Note: rear disc brake is limited to 160mm maximum rotor diameter and requires the use of Surly caliper adaptor (included with frames and bikes)
• Frame is E.D. coated for increased life expectancy
• Tire clearance for 29 x 2.5” or 27.5 x 3”

Specifications

• Frame : 100% Surly Chromoly Steel, Natch tubing, double-butted main triangle, TIG welded, E.D. coated
• Fork : 100% Surly Chromoly Steel, Natch tubing, double-butted tapered fork blades, TIG welded, E.D. coated
• Rear Derailleur : Microshift Advent X
• Cassette : Microshift Advent X, 11-48t, 10-spd
• Chain : KMC X10
• Crankset : SRAM NX 32t
• Bottom Bracket : SRAM Powerspline
• Shifter(s) : Microshift Advent X
• Brakes Levers : Tektro HD-M275/HD-M276
• Brakes : Tektro HD-M275/HD-M276
• Rotors : Tektro 160F/160R
• Headset : Cane Creek 40
• Stem : Promax DA-296
• Handlebar : Salsa Bend
• Seatpost : Promax SP-2016, 27.2 x 300mm
• Saddle : WTB Volt
• Wheels : WTB i30, Novatec Hubs
• Tires : Surly ExtraTerrestrial 29x2.5" 60tpi, Tubeless Ready, Slate-Wall

What our Experts Think

• Highly capable steel adventure bike designed for commuting, touring, bikepacking, and off-road exploration.
• Chromoly steel frame delivers a durable, compliant ride that smooths out rough roads and long-distance fatigue.
• 29" wheel platform enhances rollover efficiency, stability, and speed across mixed terrain and technical routes.
• Adventure-focused geometry supports confident handling when riding loaded with racks, bags, or gear.
• Wide tire clearance allows high-volume tires for improved traction and comfort on gravel, dirt, and rough pavement.
• Multiple mounting points make it highly versatile for expedition builds, utility setups, and year-round commuting.
• Built for real-world durability and low-maintenance reliability in demanding conditions.
• “Fermented Plum” finish adds a distinctive, rugged aesthetic that reflects its adventure-first identity.

Q&A

Q: What is the Surly Ogre designed for?
A: The Surly Ogre is a highly adaptable steel adventure bike built for commuting, bikepacking, touring, gravel riding, and rugged all-weather utility use.

Q: What material is the frame made from?
A: It uses 4130 Chromoly steel (Surly Natch tubing), offering durability, strength, and a comfortable ride over long distances and rough terrain.

Q: What wheel size does it use?
A: The Ogre is built around 29” wheels, delivering excellent rollover ability, stability, and efficiency on mixed and off-road surfaces.

Q: What makes the Ogre different from other adventure bikes?
A: It prioritizes utility and versatility, with extensive mounting options and a mountain-bike-inspired platform designed for real-world cargo and touring use.

Q: Is it good for bikepacking and touring?
A: Yes. It includes numerous mounts for racks, bottles, and cargo systems, making it a proven platform for loaded touring and off-road bikepacking.

Q: What drivetrain does it use?
A: It typically supports wide-range modern drivetrains designed for climbing, hauling gear, and mixed-terrain riding.

Q: What terrain is it best for?
A: It performs well on pavement, gravel roads, forest tracks, and moderate singletrack, making it a true all-terrain utility bike.

Q: What is special about the “Fermented Plum” color?
A: It is a deep purple finish that reflects Surly’s rugged aesthetic while giving the Ogre a distinctive, bold visual identity.

Q: Who is this bike best for?
A: Riders who want a durable, do-it-all steel bike for commuting, off-road exploration, bikepacking, and everyday utility riding.

Maintenance Tips