Quiver

2015 Specialized Tarmac S-Build vs 2015 Specialized Allez E5 Smartweld

The Specialized Allez E5 Smartweld size closest to your 54 is the 54. Compare the 54 instead

What changes on the Specialized Allez E5 Smartweld

Compared with the Specialized Tarmac S-Build in 54, the Specialized Allez E5 Smartweld in 61 places the top of the head tube 88 mm higher and 21 mm further forward, relative to the bottom bracket. Its wheelbase is 35 mm longer, which can contribute to stability at speed.

Frame stack
+88 mm
Higher front end
Frame reach
+21 mm
Longer frame reach
Wheelbase
+35 mm
Longer: steadier at speed
Head angle
+1.0°
Steeper: sharper steering
Chainstays
+5 mm
Longer: more planted

The two frames

2015 Specialized Tarmac S-Build (54) and 2015 Specialized Allez E5 Smartweld (61), lined up at the bottom bracketBoth frames drawn to scale. The Specialized Tarmac S-Build is drawn in full with its measurements, and the Specialized Allez E5 Smartweld is the colored outline on top.J 978

Specialized Tarmac S-Build, 54Specialized Allez E5 Smartweld, 61Drawn to scale and lined up at the bottom bracket.

Geometry side by side

MeasurementSpecialized Tarmac S-Build 54Specialized Allez E5 Smartweld 61Difference
Reach387mm408mm+21 mm
Stack543mm631mm+88 mm
Head tube angle73°74°+1.0°
Seat tube angle73.5°72.5°−1.0°
Effective top tube548mm600mm+52 mm
Chainstay length405mm410mm+5 mm
Wheelbase978mm1013mm+35 mm
BB drop69mm67.5mm−2 mm
Standover775mm854mm+79 mm
Seat tube length481mm580mm+99 mm
Head tube length140mm230mm+90 mm

Differences are the Specialized Allez E5 Smartweld minus the Specialized Tarmac S-Build. Full charts: 2015 Specialized Tarmac S-Build, 2015 Specialized Allez E5 Smartweld.

Where each sits in its class

Specialized Tarmac S-BuildSpecialized Allez E5 Smartweld

AggressivePositionUpright
CalmSteeringQuick
PlayfulBalancePlanted

Each bike is ranked against the other road bikes on Quiver, on frame geometry alone. Not your hand position or ride feel.

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