2025 Surly Bikes Ogre Base MD
Build
700C/29 in × 2.5 in
Stack and Reach vs. Category Trend
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Geometry
| Stack | 603.4mm |
| Reach | 410.5mm |
| Stack to Reach Ratio | 1.47:1 |
| Seat Tube Length, C-T | 457.2mm |
| Top Tube Length, Effective/Horizontal Center | 595mm |
| Top Tube Slope | 17deg |
| Head Tube Angle | 72deg |
| Seat Tube Angle | 73deg |
| Head Tube Length | 120mm |
| Bottom Bracket Drop | 68mm |
| Bottom Bracket Height | 306.5mm |
| Chainstay Length | 440mm |
| Chainstay Length Horizontal | 434.7mm |
| Front-Center | 633.5mm |
| Front-Center Horizontal | 629.8mm |
| Wheelbase | 1064.5mm |
| Fork Offset/Rake | 45mm |
| Fork Length (Axle-To-Crown) | 445mm |
| Trail | 74.4mm high |
| Mechanical Trail | 70.7mm |
| Wheel Flop | 21.9mm |
| Standover Height | 795.7mm |
| Tire to Pedal Spindle Distance With 175 mm cranks | 84mm |
| Pedal Spindle to Ground Clearance With 175 mm cranks | 131.5mm |
Base Build
| Wheel Size | 700C, 29 inch (622mm BSD) |
| Tire Width | 2.5in |
| Tire Outer Diameter | 749mm |
| Bike Length with Tires | 1813.5mm |
| Crank Length | 175mm |
| Handlebar Width | 740mm |
| Stem Length | 80mm |
| Suspension Type | Rigid, non-suspension corrected |
| Bar Type | Flat Bar |
| Frame Material | Steel |
| Fork Material | Steel |
| Brake Type | Disc |
Published Sizing Recommendations
| Height | 165 cm to 180 cm |
Source:https://surlybikes.com/products/ogre-fermented-plum