2015 Specialized Sirrus vs 2016 Surly Ogre
We can't match sizes for these two: one of them has no stack and reach for the sizes shown.
What changes on the Surly Ogre
- Frame stack
- n/a
- One of the bikes has no number for this
- Frame reach
- n/a
- One of the bikes has no number for this
- Wheelbase
- −9 mm
- Shorter: quicker to change direction
- Head angle
- +0.5°
- Steeper: sharper steering
- Chainstays
- −5 mm
- Shorter: livelier
The two frames
We can't draw these frames yet. The Specialized Sirrus numbers we have for size M are missing the reach and stack. The numbers below still compare.
Geometry side by side
| Measurement | Specialized Sirrus M | Surly Ogre M | Difference |
|---|---|---|---|
| Head tube angle | 71.5° | 72.0° | +0.5° |
| Seat tube angle | 73.5° | 73.0° | −0.5° |
| Effective top tube | 580mm | not listed | |
| Chainstay length | 445mm | 440 | −5 mm |
| Wheelbase | 1073mm | 1064.5 | −9 mm |
| BB drop | 70mm | 68 | −2 mm |
| Standover | 786mm | 795.7 | +10 mm |
| Seat tube length | 485mm | 457.2 | −28 mm |
| Head tube length | 165mm | 120 | −45 mm |
| Reach | not listed | 410.5 | |
| Stack | not listed | 603.4 | |
| Fork length | not listed | 447 |
Differences are the Surly Ogre minus the Specialized Sirrus. Full charts: 2015 Specialized Sirrus, 2016 Surly Ogre.
Where each sits in its class
Specialized SirrusSurly Ogre
AggressivePositionUpright
CalmSteeringQuick
PlayfulBalancePlanted
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 | Specialized SirrusSirrus | Surly Ogre |
|---|---|---|
| Shifter | Shimano EZ | not listed |
| Derailleur | Shimano M191, Shimano Altus | not listed |
| Chain | KMC X8 | not listed |
| Crankset | Shimano Altus | not listed |
| Tire | Specialized Nimbus | not listed |
| Saddle | Specialized Targa Sport | not listed |
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