2018 Specialized Tarmac Ultralight vs 2020 Specialized Tarmac SL6 Frameset
The 61 is the Specialized Tarmac SL6 Frameset size closest to your 61 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 Tarmac SL6 Frameset
Compared with the Specialized Tarmac Ultralight in 61, the Specialized Tarmac SL6 Frameset in 61 places the top of the head tube at about the same height and about as far forward, relative to the bottom bracket.
- Frame stack
- ±0 mm
- About the same height
- Frame reach
- ±0 mm
- About the same reach
- Wheelbase
- ±0 mm
- About the same
- Head angle
- ±0.0°
- About the same head angle
- Chainstays
- ±0 mm
- About the same
The two frames
Specialized Tarmac Ultralight, 61Specialized Tarmac SL6 Frameset, 61Drawn to scale and lined up at the bottom bracket.
Geometry side by side
| Measurement | Specialized Tarmac Ultralight 61 | Specialized Tarmac SL6 Frameset 61 | Difference |
|---|---|---|---|
| Reach | 408mm | 408mm | ±0 mm |
| Stack | 612mm | 612mm | ±0 mm |
| Head tube angle | 74° | 74° | ±0.0° |
| Seat tube angle | 73° | 73° | ±0.0° |
| Effective top tube | 595mm | not listed | |
| Chainstay length | 410mm | 410mm | ±0 mm |
| Wheelbase | 1012mm | 1012mm | ±0 mm |
| BB drop | 72mm | 72mm | ±0 mm |
| BB height | 268mm | 268mm | ±0 mm |
| Standover | 850mm | 850mm | ±0 mm |
| Seat tube length | 553mm | 553mm | ±0 mm |
| Fork length | 363mm | 363mm | ±0 mm |
| Head tube length | 210mm | 210mm | ±0 mm |
Differences are the Specialized Tarmac SL6 Frameset minus the Specialized Tarmac Ultralight. Full charts: 2018 Specialized Tarmac Ultralight, 2020 Specialized Tarmac SL6 Frameset.
Where each sits in its class
Specialized Tarmac UltralightSpecialized Tarmac SL6 Frameset
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 Tarmac SL6 Frameset |
|---|---|---|
| Frame | Specialized S-Works Tarmac SL6 | not listed |
| Shifter | Specialized C-clips | not listed |
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