NEW Surly Ogre Gravel Adventure Bike – 29, Steel, Champagne Supernova

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.

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”

Build Kit

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 RD-M6205 with Clutch
Cassette : OE 10-spd 11-48t
Chain : KMC X10
Crankset : SRAM NX 32t
Bottom Brcket : SRAM Powerspline
Shifter(s) : Microshift SL-M9605 Trail Pro
Brakes Levers : Tektro FR5
Brakes : Avid BB5 Mechanical
Rotors : 160F/160R
Headset : Cane Creek
Stem : Kalloy 31.8
Handlebar : Salsa Bend
Seatpost : ProMax 27.2x300
Saddle : WTB Volt
Wheels : WTB i29, Novatech Hubs
Tires : Surly ExtraTerrestrial 29x2.5" 60tpi, Tubeless Ready

Sizing
Surly recommends the following sizes based on rider height:

SM 5'4" - 5'8"
MD 5'7" - 6'
LG 5'11" - 6'3"
XL 6'2" - 6'6"

Geometry in mm

Frame measurements (mm)
SM
MD
LG
XL

A. BB Drop
68
68
68
68

B. Chainstay Length
440
440
440
440

C. Fork Length - Axle to Crown
447
447
447
447

D. Fork Offset
43
43
43
43

E. Head Tube Angle (deg)
71.5
72
72
72

F. Headtube Length
110
120
130
150

G. Reach
395.5
410.5
427.6
447

H. Seat Tube Angle (deg)
73
73
73
73

I. Seat Tube Length - Center to Top
406.4
457.2
508
558

J. Stack
592
603.4
613
632

K. Standover
763.5
795.7
824.5
857.85

L. Top Tube Length (Effective)
575
595
615
640

M. Wheelbase
1049.4
1064.5
1084.6
1110

Component measurements (mm)

Crank Arm Length
170
175
175
175

Handlebar Width
700
740
740
740

Handlebar Rise / Drop
-
-
-
-

Stem Length
70
80
90
100

Stem Angle (deg)
7
7
7
7