2016 Surly Ogre vs 2015 Specialized Sirrus Comp
The M is the Specialized Sirrus Comp size closest to your Small (16) Surly Ogre. We match frame stack and reach. This is a geometry comparison, not a fit recommendation; stem, spacers, handlebars and saddle setup also affect your riding position.
What changes on the Specialized Sirrus Comp
Compared with the Surly Ogre in Small (16), the Specialized Sirrus Comp in M places the top of the head tube at about the same height and 11 mm further forward, relative to the bottom bracket. Its wheelbase is 20 mm longer, which can contribute to stability at speed.
- Frame stack
- −2 mm
- About the same height
- Frame reach
- +11 mm
- Longer frame reach
- Wheelbase
- +20 mm
- Longer: steadier at speed
- Head angle
- +0.5°
- Steeper: sharper steering
- Chainstays
- +8 mm
- Longer: more planted
The two frames
Surly Ogre, Small (16)Specialized Sirrus Comp, MDrawn to scale and lined up at the bottom bracket.
Geometry side by side
| Measurement | Surly Ogre Small (16) | Specialized Sirrus Comp M | Difference |
|---|---|---|---|
| Reach | 394.9 | 406mm | +11 mm |
| Stack | 591.1 | 589mm | −2 mm |
| Head tube angle | 71.0° | 71.5° | +0.5° |
| Seat tube angle | 73.0° | 73.5° | +0.5° |
| Chainstay length | 431.0 | 439mm | +8 mm |
| Wheelbase | 1046.1 | 1066mm | +20 mm |
| BB drop | 68.0 | 70mm | +2 mm |
| Standover | 762.9 | 780mm | +17 mm |
| Seat tube length | 406.4 | 485mm | +79 mm |
| Fork length | 468.0 | not listed | |
| Head tube length | 90.0 | 165mm | +75 mm |
| Effective top tube | not listed | 580mm | |
| BB height | not listed | 272.5mm |
Differences are the Specialized Sirrus Comp minus the Surly Ogre. Full charts: 2016 Surly Ogre, 2015 Specialized Sirrus Comp.
Where each sits in its class
Surly OgreSpecialized Sirrus Comp
Each bike is ranked against the other commuter bikes on Quiver, on frame geometry alone. Not your hand position or ride feel.
What each ships with
The stock build of each bike's first listed trim. Parts that match are dimmed.
| Part | Surly Ogre | Specialized Sirrus CompComp |
|---|---|---|
| Shifter | not listed | SRAM SL500 |
| Derailleur | not listed | SRAM X7 |
| Cassette | not listed | SRAM PG-1030 |
| Chain | not listed | KMC X-10 |
| Crankset | not listed | FSA Omega |
| Pedals | not listed | Specialized Sirrus |
| Wheelset | not listed | Specialized AXIS 1.0 |
| Tire | not listed | Specialized Espoir Sport Reflect |
| Brake | not listed | Tektro RX 1.0, Tektro RX1 |
| Saddle | not listed | Specialized Targa Sport |
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