2015 Specialized Sirrus Sport Disc 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
- +20 mm
- Longer: steadier at speed
- Head angle
- +1.0°
- Steeper: sharper steering
- Chainstays
- −5 mm
- Shorter: livelier
The two frames
We can't draw these frames yet. The Specialized Sirrus Sport Disc numbers we have for size S are missing the reach and stack. The numbers below still compare.
Geometry side by side
| Measurement | Specialized Sirrus Sport Disc S | Surly Ogre L | Difference |
|---|---|---|---|
| Head tube angle | 71° | 72.0° | +1.0° |
| Seat tube angle | 73.25° | 73.0° | −0.3° |
| Effective top tube | 570mm | not listed | |
| Chainstay length | 445mm | 440 | −5 mm |
| Wheelbase | 1065mm | 1084.6 | +20 mm |
| BB drop | 70mm | 68 | −2 mm |
| Standover | 750mm | 824.5 | +75 mm |
| Seat tube length | 440mm | 508 | +68 mm |
| Head tube length | 150mm | 130 | −20 mm |
| Reach | not listed | 427.6 | |
| Stack | not listed | 613 | |
| Fork length | not listed | 447 |
Differences are the Surly Ogre minus the Specialized Sirrus Sport Disc. Full charts: 2015 Specialized Sirrus Sport Disc, 2016 Surly Ogre.
Where each sits in its class
Specialized Sirrus Sport DiscSurly 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 Sirrus Sport DiscSport Disc | Surly Ogre |
|---|---|---|
| Shifter | Shimano Acera | not listed |
| Derailleur | Shimano Acera | not listed |
| Chain | KMC X9 | not listed |
| Pedals | Specialized Sirrus | not listed |
| Tire | Specialized Nimbus | not listed |
| Hub | Specialized Hi Lo | not listed |
| Brake | Tektro Auriga | not listed |
| Saddle | Specialized Targa Sport | not listed |
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