Quiver

2015 Specialized Sirrus Comp 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 Comp in M, the Surly Ogre in L places the top of the head tube 24 mm higher and 22 mm further forward, relative to the bottom bracket. Its wheelbase is 19 mm longer, which can contribute to stability at speed.

Frame stack
+24 mm
Higher front end
Frame reach
+22 mm
Longer frame reach
Wheelbase
+19 mm
Longer: steadier at speed
Head angle
+0.5°
Steeper: sharper steering
Chainstays
+1 mm
About the same

The two frames

2015 Specialized Sirrus Comp (M) and 2016 Surly Ogre (L), lined up at the bottom bracketBoth frames drawn to scale. The Specialized Sirrus Comp is drawn in full with its measurements, and the Surly Ogre is the colored outline on top.J 1066

Specialized Sirrus Comp, MSurly Ogre, LDrawn to scale and lined up at the bottom bracket.

Geometry side by side

MeasurementSpecialized Sirrus Comp MSurly Ogre LDifference
Reach406mm427.6+22 mm
Stack589mm613+24 mm
Head tube angle71.5°72.0°+0.5°
Seat tube angle73.5°73.0°−0.5°
Effective top tube580mmnot listed
Chainstay length439mm440+1 mm
Wheelbase1066mm1084.6+19 mm
BB drop70mm68−2 mm
BB height272.5mmnot listed
Standover780mm824.5+45 mm
Seat tube length485mm508+23 mm
Head tube length165mm130−35 mm
Fork lengthnot listed447

Differences are the Surly Ogre minus the Specialized Sirrus Comp. Full charts: 2015 Specialized Sirrus Comp, 2016 Surly Ogre.

Where each sits in its class

Specialized Sirrus CompSurly 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 CompCompSurly Ogre
ShifterSRAM SL500not listed
DerailleurSRAM X7not listed
CassetteSRAM PG-1030not listed
ChainKMC X-10not listed
CranksetFSA Omeganot listed
PedalsSpecialized Sirrusnot listed
WheelsetSpecialized AXIS 1.0not listed
TireSpecialized Espoir Sport Reflectnot listed
BrakeTektro RX 1.0, Tektro RX1not listed
SaddleSpecialized Targa Sportnot listed

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