2018 Specialized Tarmac Ultralight vs 2017 Specialized Allez DSW SL Sprint Comp
The 52 is the Specialized Allez DSW SL Sprint Comp size closest to your 49 Specialized Tarmac Ultralight. 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 DSW SL Sprint Comp
Compared with the Specialized Tarmac Ultralight in 49, the Specialized Allez DSW SL Sprint Comp in 52 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 Ultralight, 49Specialized Allez DSW SL Sprint Comp, 52Drawn to scale and lined up at the bottom bracket.
Geometry side by side
| Measurement | Specialized Tarmac Ultralight 49 | Specialized Allez DSW SL Sprint Comp 52 | 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 | 527mm | +19 mm |
| 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 DSW SL Sprint Comp minus the Specialized Tarmac Ultralight. Full charts: 2018 Specialized Tarmac Ultralight, 2017 Specialized Allez DSW SL Sprint Comp.
Where each sits in its class
Specialized Tarmac UltralightSpecialized Allez DSW SL Sprint Comp
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 UltralightS-Works Ultralight | Specialized Allez DSW SL Sprint CompDSW SL Sprint Comp |
|---|---|---|
| Frame | Specialized S-Works Tarmac SL6 | not listed |
| Shifter | Specialized C-clips | Shimano 105 |
| Derailleur | not listed | Shimano 105 |
| Cassette | not listed | Shimano 105 |
| Chain | not listed | KMC X-11 |
| Crankset | not listed | Praxis Alba 2D |
| Wheelset | not listed | Specialized AXIS Elite |
| Tire | not listed | Specialized Turbo Pro |
| Brake | not listed | Specialized AXIS 2.0 |
| Seatpost | not listed | Specialized Venge |
| Saddle | not listed | Specialized Toupé Sport |
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