Quiver

2015 Specialized Sirrus Elite Carbon Disc vs 2016 Surly Ogre

The Surly Ogre size closest to your M is the S. Compare the S instead

What changes on the Surly Ogre

Compared with the Specialized Sirrus Elite Carbon Disc in M, the Surly Ogre in XL places the top of the head tube 41 mm higher and 44 mm further forward, relative to the bottom bracket. Its wheelbase is 50 mm longer, which can contribute to stability at speed.

Frame stack
+41 mm
Higher front end
Frame reach
+44 mm
Longer frame reach
Wheelbase
+50 mm
Longer: steadier at speed
Head angle
+0.5°
Steeper: sharper steering
Chainstays
+5 mm
Longer: more planted

The two frames

2015 Specialized Sirrus Elite Carbon Disc (M) and 2016 Surly Ogre (XL), lined up at the bottom bracketBoth frames drawn to scale. The Specialized Sirrus Elite Carbon Disc is drawn in full with its measurements, and the Surly Ogre is the colored outline on top.J 1060

Specialized Sirrus Elite Carbon Disc, MSurly Ogre, XLDrawn to scale and lined up at the bottom bracket.

Geometry side by side

MeasurementSpecialized Sirrus Elite Carbon Disc MSurly Ogre XLDifference
Reach403mm447+44 mm
Stack591mm632+41 mm
Head tube angle71.5°72.0°+0.5°
Seat tube angle73.5°73.0°−0.5°
Effective top tube580mmnot listed
Chainstay length435mm440+5 mm
Wheelbase1060mm1110+50 mm
BB drop70mm68−2 mm
Standover785mm857.85+73 mm
Seat tube length485mm558+73 mm
Head tube length165mm150−15 mm
Fork lengthnot listed447

Differences are the Surly Ogre minus the Specialized Sirrus Elite Carbon Disc. Full charts: 2015 Specialized Sirrus Elite Carbon Disc, 2016 Surly Ogre.

Where each sits in its class

Specialized Sirrus Elite Carbon 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.

PartSpecialized Sirrus Elite Carbon DiscElite Carbon DiscSurly Ogre
FrameSpecialized Sirrus FACTnot listed
ShifterShimano Soranot listed
DerailleurShimano Soranot listed
ChainKMC X9not listed
CranksetFSA Temponot listed
WheelsetSpecialized AXIS Classicnot listed
TireSpecialized Espoir Sport Reflectnot listed
BrakeTektro Gemininot listed
SaddleSpecialized Targa Sportnot listed

Know what is on every bike.

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