2018 Specialized Tarmac Ultralight vs 2020 Specialized Tarmac SL6 Frameset
The Specialized Tarmac SL6 Frameset size closest to your 54 is the 54. Compare the 54 instead
What changes on the Specialized Tarmac SL6 Frameset
Compared with the Specialized Tarmac Ultralight in 54, the Specialized Tarmac SL6 Frameset in 58 places the top of the head tube 47 mm higher and 18 mm further forward, relative to the bottom bracket. Its wheelbase is 29 mm longer, which can contribute to stability at speed.
- Frame stack
- +47 mm
- Higher front end
- Frame reach
- +18 mm
- Longer frame reach
- Wheelbase
- +29 mm
- Longer: steadier at speed
- Head angle
- +0.5°
- Steeper: sharper steering
- Chainstays
- +2 mm
- About the same
The two frames
Specialized Tarmac Ultralight, 54Specialized Tarmac SL6 Frameset, 58Drawn to scale and lined up at the bottom bracket.
Geometry side by side
| Measurement | Specialized Tarmac Ultralight 54 | Specialized Tarmac SL6 Frameset 58 | Difference |
|---|---|---|---|
| Reach | 384mm | 402mm | +18 mm |
| Stack | 544mm | 591mm | +47 mm |
| Head tube angle | 73° | 73.5° | +0.5° |
| Seat tube angle | 74° | 73.5° | −0.5° |
| Effective top tube | 540mm | not listed | |
| Chainstay length | 405mm | 407mm | +2 mm |
| Wheelbase | 973mm | 1002mm | +29 mm |
| BB drop | 72mm | 72mm | ±0 mm |
| BB height | 268mm | 268mm | ±0 mm |
| Standover | 775mm | 826mm | +51 mm |
| Seat tube length | 481mm | 522mm | +41 mm |
| Fork length | 363mm | 363mm | ±0 mm |
| Head tube length | 143mm | 190mm | +47 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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