Specialized Tarmac SL8 Pro – Shimano Ultegra Di2 2025
2025 Road
Estimate price |
10,470$
Weight | 7.16 kg 
Bike details
Overview
Key information split into simple groups.
Bike summary
-
-
Frame Carbon -
Groupset Ultegra, Ultegra Di2 -
Suspension Rigid -
Drivetrain 2 × 12 Electronic -
Brakes Hydraulic Disc
Parts list
Components
Main components, grouped by system.
Bike components
Frame
Frame
Tarmac SL8 FACT 10r Carbon, Rider First Engineered™, Win Tunnel Engineered, Clean Routing, Threaded BB, 12x142mm thru-axle, flat-mount disc
Suspension Fork
FACT 10r Carbon, 12x100mm thru-axle, flat-mount disc
Drivetrain
Rear Derailleur
Shimano Ultegra Di2 R8150, 12-speed
Front Derailleur
Shimano Ultegra Di2 R8150, braze-on
Shift Levers
Shimano Ultegra Di2 R8170, hydraulic disc
Cassette
Shimano Ultegra, 12-speed, 11-30t
Crank
Shimano Ultegra R8100 with 4iiii power meter
Bottom Bracket
BSA, 68mm, threaded
Chain
Shimano Ultegra, 12-speed
Pedals
PEDAL, TEST RIDE PEDALS PROVIDED BY SPECIALIZED
Wheels
Tires
S-Works Turbo, 2BR, 700x26mm
Brakes
Brakes
Shimano Ultegra Di2 R8170, hydraulic disc
Cockpit
Stem
Tarmac integrated stem, 6-degree
Handlebar
Roval Rapide Cockpit, Integrated Bar/Stem
Headset
STEM HEADSET SPACERS KIT FOR SL7 STEM & ROVAL RAPIDE COCKPIT USE
Seat
Saddle
Power Pro with Mirror
Seatpost
S-Works Tarmac SL8 Carbon seat post, FACT Carbon, 15mm offset
Fit data
Geometry
Numbers for sizing and ride feel.
| Size | 44cm | 49cm | 52cm | 54cm | 56cm | 58cm | 61cm |
|---|---|---|---|---|---|---|---|
| Stack Reach Ratio | 1.369 mm | 1.371 mm | 1.387 mm | 1.417 mm | 1.43 mm | 1.47 mm | 1.5 mm |
| Bottom Bracket Height | 266 mm | 266 mm | 266 mm | 268 mm | 268 mm | 268 mm | 268 mm |
| Front Center | 572 mm | 575 mm | 577 mm | 579 mm | 592 mm | 607 mm | 614 mm |
| Rake | 47 mm | 47 mm | 47 mm | 44 mm | 44 mm | 44 mm | 44 mm |
| Trail | 69 mm | 61 mm | 57 mm | 57 mm | 54 mm | 53 mm | 50 mm |
| Stack | 501 mm | 514 mm | 527 mm | 544 mm | 565 mm | 591 mm | 612 mm |
| Reach | 366 mm | 375 mm | 380 mm | 384 mm | 395 mm | 402 mm | 408 mm |
| Top Tube Length | 496 mm | 509 mm | 531 mm | 541 mm | 563 mm | 577 mm | 595 mm |
| Head Tube Angle | 70.5 ° | 71.75 ° | 72.5 ° | 73 ° | 73.5 ° | 73.5 ° | 74 ° |
| Head Tube Length | 99 mm | 109 mm | 120 mm | 137 mm | 157 mm | 184 mm | 204 mm |
| Chainstay Length | 410 mm | 410 mm | 410 mm | 410 mm | 410 mm | 410 mm | 410 mm |
| Wheelbase | 970 mm | 973 mm | 975 mm | 978 mm | 991 mm | 1006 mm | 1013 mm |
| Bottom Bracket Drop | 74 mm | 74 mm | 74 mm | 72 mm | 72 mm | 72 mm | 72 mm |
| Standover Height | 723 mm | 735 mm | 746 mm | 768 mm | 786 mm | 808 mm | 834 mm |
| Wheels | 700 | 700 | 700 | 700 | 700 | 700 | 700 |