Meet Ogre, Troll’s bigger-wheel brother. 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. Both frames feature gusseted sloping toptubes, Surly Trip Guides for running full shift and brake housing, mounts for linear-pull and disc brakes, and ample room between the stays for high-volume rubber…up to about 2.5".
Ogre comes with our suspension-corrected (80mm) fork. It features mid-blade eyelets and low-blade barrel bosses for mounting front racks. We provide canti pivots and disc brake mounts, so you can choose a system that best suits your stopping needs. And it’s specifically designed to allow the use of a fender, disc brake, and front rack at the same time. Yep, you read that right.
Like the fork, the rear end allows all-at-once rack, fender and disc compatibility. Spaced for 135mm hubs, the ‘dropouts’ are just like Troll’s…rear load horizontals with 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 framesets because we want you to build up a Troll or Ogre the way it will best serve you. Framesets and complete bikes are available in sizes 16, 18, 20, 22 and supergiant 24". Tall folks, we got your back.
Frame Highlights
| Tubing: | Surly 4130 CroMoly steel. Main triangle double-butted. TIG welded |
|---|---|
| Rear dropouts: | Horizontal slotted with derailleur hanger, 135mm 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 |
| Braze-ons: | Full-length Surly Trip Guide housing line guides for derailleurs and brakes; two sets of water bottle cage mounts, removable post cantilever pivots; 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 |
| Seatpost diameter: | 27.2mm |
| Seatpost clamp: | 30.0mm (Surly stainless included) |
| Headset/Steertube: | 1-1/8" threadless |
| Front derailleur clamp: | 28.6mm, top pull |
| Bottom bracket shell: | 73mm shell width, threaded standard English (1.37" x 24t) |
| Chainring clearance: | 26/36/46t |
| Tire clearance: | 29 x 2.5". Individual tire and rim combos affect tire clearance |
| Fork: | TIG-welded 4130 CroMoly, 80mm 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 (203mm max. rotor diameter), removable cantilever pivots, line/housing guides |
| Color: | Army Green with white decals |
Geometry
| 16" | 18" | 20" | 22" | 24" | ||
|---|---|---|---|---|---|---|
| Seat Tube Length (Center-Top) |
406.4 | 457.2 | 508.0 | 558.8 | 609.6 | |
| Top Tube Length (Center-Center) |
557.7 | 575.0 | 589.9 | 607.1 | 627.1 | |
| Effective Top Tube Length (Center-Center) |
575.6 | 599.3 | 616.3 | 632.2 | 648.1 | |
| Head Tube Angle | 71.0 | 71.5 | 72.0 | 72.0 | 72.0 | |
| Seat Tube Angle | 73.0 | 73.0 | 73.0 | 73.0 | 73.0 | |
| BB Drop | 68.0 | 68.0 | 68.0 | 68.0 | 68.0 | |
| Chainstay Length | 431.0 | 431.0 | 431.0 | 431.0 | 431.0 | |
| Wheelbase | 1046.1 | 1064.9 | 1076.8 | 1093.0 | 1109.1 | |
| Standover Height | 762.9 | 792.7 | 822.5 | 853.5 | 876.5 | |
| Head Tube Length | 90 | 100 | 110 | 125 | 140 | |
| Fork Length | 468.0 | 468.0 | 468.0 | 468.0 | 468.0 | |
| Fork Rake | 43.0 | 43.0 | 43.0 | 43.0 | 43.0 |
* All dimensions are preliminary and are subject to change.
**Measurements use tire with a diameter of 740mm (29 x 2.3”), taken from middle of the toptube to level ground.
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