2025
2025 Specialized Tarmac SL8 Pro Shimano
The 2025 Specialized Tarmac SL8 Pro Shimano sits more aggressive than most road bikes, with a longer rear center. Reach 366 to 408 mm, stack 501 to 612 mm. The Tarmac SL8 Pro - Shimano Ultegra Di2 build comes with Shimano Ultegra R8150 Di2 shifting and Roval Rapide CL II wheels.
Source: specialized.com. Checked .
Key facts
- Brand
- Specialized
- Model
- Tarmac SL8
- Model year
- 2025
- Frame
- Pro Shimano
- Type
- Road
- Geometry labels
- 44, 49, 52, 54, 56, 58, and 61
- Drivetrain
- Shimano Ultegra R8150 Di2
- Wheels
- Roval Rapide CL II
- Geometry
- Complete for every size
- Source
- specialized.com
- Checked
Geometry by size
| Measurement | 44 | 49 | 52 | 54 | 56 | 58 | 61 |
|---|---|---|---|---|---|---|---|
| Reach(mm) | 366 | 375 | 380 | 384 | 395 | 402 | 408 |
| Stack(mm) | 501 | 514 | 527 | 544 | 565 | 591 | 612 |
| Head tube angle(°) | 70.5 | 71.75 | 72.5 | 73 | 73.5 | 73.5 | 74 |
| Seat tube angle(°) | 75.5 | 75.5 | 74 | 74 | 73.5 | 73.5 | 73 |
| Chainstay length(mm) | 410 | 410 | 410 | 410 | 410 | 410 | 410 |
| Wheelbase(mm) | 970 | 973 | 975 | 978 | 991 | 1006 | 1013 |
| BB drop(mm) | 74 | 74 | 74 | 72 | 72 | 72 | 72 |
| BB height(mm) | 266 | 266 | 266 | 268 | 268 | 268 | 268 |
| Standover(mm) | 723 | 735 | 746 | 768 | 786 | 808 | 834 |
| Seat tube length(mm) | 433 | 445 | 456 | 473 | 494 | 515 | 545 |
| Fork length(mm) | 370 | 370 | 370 | 370 | 370 | 370 | 370 |
| Head tube length(mm) | 99 | 109 | 120 | 137 | 157 | 184 | 204 |
Stock build
12 parts
Frame
Specialized Tarmac SL8 FACT
Drivetrain
Wheels & Tires
Brakes
Shimano Ultegra R8170 Di2
Cockpit
Roval Rapide Cockpit
Seatpost & Saddle
Specialized Power
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Quick answers
- Which size or configuration labels have geometry for the 2025 Specialized Tarmac SL8 Pro Shimano?
- Geometry is listed for 44, 49, 52, 54, 56, 58, and 61.
- What are the reach and stack of the 2025 Specialized Tarmac SL8 Pro Shimano in size 54?
- In size 54, reach is 384 mm and stack is 544 mm.
- What is the head tube angle of the 2025 Specialized Tarmac SL8 Pro Shimano?
- The head tube angle is 73 degrees in size 54.
- What does the 2025 Specialized Tarmac SL8 Pro - Shimano Ultegra Di2 ship with?
- The stock build includes Specialized Tarmac SL8 FACT, Shimano Ultegra R8170 Di2, Roval Rapide CL II, and Shimano Ultegra R8170 Di2.
- Which years of the Specialized Tarmac SL8 are on Quiver?
- Quiver has the Specialized Tarmac SL8 for 2025, 2026, and 2024.
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