2021 Specialized Allez Sprint D'Aluisio Smartweld Alloy vs 2020 Specialized Tarmac SL6
The 61 is the Specialized Tarmac SL6 size closest to your 61 Specialized Allez Sprint D'Aluisio Smartweld Alloy. 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 Tarmac SL6
Compared with the Specialized Allez Sprint D'Aluisio Smartweld Alloy in 61, the Specialized Tarmac SL6 in 61 places the top of the head tube 7 mm higher and 3 mm further back, relative to the bottom bracket.
- Frame stack
- +7 mm
- Higher front end
- Frame reach
- −3 mm
- Shorter frame reach
- Wheelbase
- −1 mm
- About the same
- Head angle
- ±0.0°
- About the same head angle
- Chainstays
- ±0 mm
- About the same
The two frames
Specialized Allez Sprint D'Aluisio Smartweld Alloy, 61Specialized Tarmac SL6, 61Drawn to scale and lined up at the bottom bracket.
Geometry side by side
| Measurement | Specialized Allez Sprint D'Aluisio Smartweld Alloy 61 | Specialized Tarmac SL6 61 | Difference |
|---|---|---|---|
| Reach | 411mm | 408mm | −3 mm |
| Stack | 605mm | 612mm | +7 mm |
| Head tube angle | 74° | 74° | ±0.0° |
| Seat tube angle | 73° | 73° | ±0.0° |
| Chainstay length | 410mm | 410mm | ±0 mm |
| Wheelbase | 1013mm | 1012mm | −1 mm |
| BB drop | 72mm | 72mm | ±0 mm |
| BB height | 268mm | 268mm | ±0 mm |
| Standover | 835mm | 850mm | +15 mm |
| Seat tube length | 570mm | 553mm | −17 mm |
| Fork length | 366mm | 363mm | −3 mm |
| Head tube length | 200mm | 210mm | +10 mm |
Differences are the Specialized Tarmac SL6 minus the Specialized Allez Sprint D'Aluisio Smartweld Alloy. Full charts: 2021 Specialized Allez Sprint D'Aluisio Smartweld Alloy, 2020 Specialized Tarmac SL6.
Where each sits in its class
Specialized Allez Sprint D'Aluisio Smartweld AlloySpecialized Tarmac SL6
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 Allez Sprint D'Aluisio Smartweld AlloyD'Aluisio Smartweld Alloy | Specialized Tarmac SL6S-Works |
|---|---|---|
| Seatpost | Specialized S-Works Tarmac | not listed |
| Derailleur | not listed | SRAM RED eTAP AXS |
| Cassette | not listed | SRAM RED XG-1290 |
| Chain | not listed | SRAM Red |
| Crankset | not listed | SRAM RED AXS Power Meter |
| Bottom bracket | not listed | SRAM DUB |
| Wheelset | not listed | Roval CLX 50 |
| Tire | not listed | Specialized Turbo Cotton |
| Hub | not listed | Specialized LuHai_RVT66L-K5-B25-AN2-N4-F0 |
| Brake | not listed | SRAM Red eTap AXS |
| Saddle | not listed | Specialized S-Works Power |
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