2022 Specialized Tarmac SL6 vs 2024 Specialized Tarmac SL8
The Specialized Tarmac SL8 size closest to your 54 is the 54. Compare the 54 instead
What changes on the Specialized Tarmac SL8
Compared with the Specialized Tarmac SL6 in 54, the Specialized Tarmac SL8 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 28 mm longer, which can contribute to stability at speed.
- Frame stack
- +47 mm
- Higher front end
- Frame reach
- +18 mm
- Longer frame reach
- Wheelbase
- +28 mm
- Longer: steadier at speed
- Head angle
- +0.5°
- Steeper: sharper steering
- Chainstays
- ±0 mm
- About the same
The two frames
Specialized Tarmac SL6, 54Specialized Tarmac SL8, 58Drawn to scale and lined up at the bottom bracket.
Geometry side by side
| Measurement | Specialized Tarmac SL6 54 | Specialized Tarmac SL8 58 | Difference |
|---|---|---|---|
| Reach | 384mm | 402 | +18 mm |
| Stack | 544mm | 591 | +47 mm |
| Head tube angle | 73° | 73.5 | +0.5° |
| Seat tube angle | 74° | 73.5 | −0.5° |
| Chainstay length | 410mm | 410 | ±0 mm |
| Wheelbase | 978mm | 1006 | +28 mm |
| BB drop | 72mm | 72 | ±0 mm |
| BB height | 268mm | 268 | ±0 mm |
| Standover | 775mm | 808 | +33 mm |
| Seat tube length | 499mm | 515 | +16 mm |
| Fork length | 363mm | 370 | +7 mm |
| Head tube length | 143mm | 184 | +41 mm |
Differences are the Specialized Tarmac SL8 minus the Specialized Tarmac SL6. Full charts: 2022 Specialized Tarmac SL6, 2024 Specialized Tarmac SL8.
Where each sits in its class
Specialized Tarmac SL6Specialized Tarmac SL8
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 SL6Tarmac SL6 - Shimano Tiagra | Specialized Tarmac SL8 |
|---|---|---|
| Frame | Specialized Tarmac SL6 | not listed |
| Shifter | Shimano Tiagra | not listed |
| Derailleur | Shimano Tiagra | not listed |
| Chain | KMC X10 | not listed |
| Crankset | Shimano Tiagra 4700 | not listed |
| Wheelset | Specialized Axis Sport | not listed |
| Tire | Specialized Turbo Pro | not listed |
| Brake | Shimano Tiagra BR-4770 | not listed |
| Saddle | Specialized Power Sport | not listed |
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