2019 Specialized Tarmac SL6 Pro vs 2020 Specialized Allez Sprint
The 52.0 is the Specialized Allez Sprint size closest to your 49 Specialized Tarmac SL6 Pro. We match frame stack and reach. This is a geometry comparison, not a fit recommendation; stem, spacers, handlebars and saddle setup also affect your riding position.
What changes on the Specialized Allez Sprint
Compared with the Specialized Tarmac SL6 Pro in 49, the Specialized Allez Sprint in 52.0 places the top of the head tube at about the same height and 5 mm further forward, relative to the bottom bracket. Its wheelbase is 7 mm shorter, which can contribute to quicker direction changes.
- Frame stack
- ±0 mm
- About the same height
- Frame reach
- +5 mm
- Longer frame reach
- Wheelbase
- −7 mm
- Shorter: quicker to change direction
- Head angle
- +1.3°
- Steeper: sharper steering
- Chainstays
- ±0 mm
- About the same
The two frames
Specialized Tarmac SL6 Pro, 49Specialized Allez Sprint, 52.0Drawn to scale and lined up at the bottom bracket.
Geometry side by side
| Measurement | Specialized Tarmac SL6 Pro 49 | Specialized Allez Sprint 52.0 | Difference |
|---|---|---|---|
| Reach | 375mm | 380mm | +5 mm |
| Stack | 514mm | 514mm | ±0 mm |
| Head tube angle | 71.75° | 73° | +1.3° |
| Seat tube angle | 75.5° | 74° | −1.5° |
| Effective top tube | 508mm | not listed | |
| Chainstay length | 405mm | 405mm | ±0 mm |
| Wheelbase | 968mm | 961mm | −7 mm |
| BB drop | 74mm | 69mm | −5 mm |
| BB height | 266mm | 272.5mm | +7 mm |
| Standover | 740mm | 745.8mm | +6 mm |
| Seat tube length | 431mm | 480mm | +49 mm |
| Fork length | 363mm | 368mm | +5 mm |
| Head tube length | 115mm | 110mm | −5 mm |
Differences are the Specialized Allez Sprint minus the Specialized Tarmac SL6 Pro. Full charts: 2019 Specialized Tarmac SL6 Pro, 2020 Specialized Allez Sprint.
Where each sits in its class
Specialized Tarmac SL6 ProSpecialized Allez Sprint
Each bike is ranked against the other road 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 Tarmac SL6 ProPro | Specialized Allez SprintAllez Sprint Frameset |
|---|---|---|
| Frame | Specialized Tarmac SL6 | not listed |
| Seatpost | not listed | Specialized Allez Sprint |
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