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Tarmac SL8 Pro - Shimano Ultegra Di2 (2026)
Tarmac SL8 Pro - Shimano Ultegra Di2 (2026)
SKU:94926-1352
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Nothing is faster than the Tarmac SL8 thanks to a combination of aerodynamics, lightweight, and ride quality previously thought impossible. After eight generations and over two decades of development, it’s more than the fastest Tarmac ever. It’s the world’s fastest race bike—made even faster with the aero paradigm-shifting performance of the all-new Roval Rapide CL III wheels. Aerodynamics or lightweight alone don’t win races - speed is what matters. Delivering that speed requires creating an uncompromising combination of aerodynamics, lightweight, stiffness, and compliance.
- AERO IN EVERYTHING: We’re putting aero where it matters - the leading edge - not just where it looks good. In the process we’ve created our most aerodynamic road bike ever. Yes, it’s more aero than the Venge.
- MINIMUM WEIGHT, MAXIMUM AERO: Tarmac SL8 took learnings from Aethos to be easily built at the UCI minimum with a full aero set up.
- GOES LIKE HELL, RIDES LIKE HEAVEN: With massive gains in stiffness-to-weight - an improvement of 33% over the SL7 - the Tarmac SL8 takes legendary handling, aggressive responsiveness and World Championship proven geometry to the next level.
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Technical Specifications
Frameset
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
Brakes
Front Brake
Shimano Ultegra BR-R8170 hydraulic disc
Rear Brake
Shimano Ultegra BR-R8170 hydraulic disc
Drivetrain
Shift Levers
Shimano Ultegra Di2 R8170, hydraulic disc
Front Derailleur
Shimano Ultegra Di2 R8150, braze-on
Rear Derailleur
Shimano Ultegra Di2 R8150, 12-speed
Cassette
Shimano Ultegra, 12-speed, 11-30t
Chain
Shimano XT CN-M8100, 12-speed
Crankset
Shimano Ultegra R81000 with 4iiii Precision 3+ Power Meter, 52/36t
Bottom Bracket
Shimano Threaded BSA BB
Wheels & Tires
Front Tire
S-Works Turbo TLR Race Tire, 700x28c
Front Wheel
Roval Rapide CL III, Tubeless, 21mm internal width carbon rim, 51mm depth, Win Tunnel Engineered, DT350 hub, 18h, DT Swiss Competition Race Straight Pull Spokes
Rear Tire
S-Works Turbo TLR Race Tire, 700x28c
Rear Wheel
Roval Rapide CL III, Tubeless, 21mm internal width carbon rim, 48.5mm depth, Win Tunnel Engineered, DT350 hub, 24h, DT Swiss Competition Race Straight Pull Spokes
Inner Tubes
Standard 700 x 20-28 80mm PV
Cockpit
Handlebars
Roval Rapide Cockpit, Integrated Bar/Stem
Tape
Supacaz Super Sticky Kush
Saddle
Power Pro Mirror, Hollow Ti rails
SeatPost
S-Works Tarmac SL8 Carbon seat post, FACT Carbon, 15mm offset
Seat Binder
Tarmac integrated wedge
Accessories
Headset
Stem headset spacers kit for SL7 stem & Roval Rapide cockpit use
Weight
Weight
7.25 kg (15 lb, 15.7 oz)
Weight Size
56
Geometry
| 44 | 49 | 52 | 54 | 56 | 58 | 61 | |
|---|---|---|---|---|---|---|---|
| Crank Length | 165mm | 165mm | 170mm | 172.5mm | 172.5mm | 175mm | 175mm |
| Handlebar Width | 380mm | 380mm | 400mm | 400mm | 420mm | 420mm | 440mm |
| Stem Length | 75mm | 75mm | 90mm | 100mm | 100mm | 110mm | 110mm |
| Saddle Width | 155mm | 155mm | 155mm | 143mm | 143mm | 143mm | 143mm |
| Seatpost Length | 300mm | 300mm | 300mm | 380mm | 380mm | 380mm | 380mm |
| Frame Stack | 501mm | 514mm | 527mm | 544mm | 565mm | 591mm | 612mm |
| Frame Reach | 366mm | 375mm | 380mm | 384mm | 395mm | 402mm | 408mm |
| Stack to Stem | 509mm | 522mm | 535mm | 552mm | 573mm | 599mm | 620mm |
| Reach to Stem | 363mm | 372mm | 377mm | 381mm | 393mm | 400mm | 406mm |
| Head Tube Length | 99mm | 109mm | 120mm | 137mm | 157mm | 184mm | 204mm |
| Head Tube Angle | 70.5° | 71.75° | 72.5° | 73° | 73.5° | 73.5° | 74° |
| BB Height | 266mm | 266mm | 266mm | 268mm | 268mm | 268mm | 268mm |
| BB Drop | 74mm | 74mm | 74mm | 72mm | 72mm | 72mm | 72mm |
| Trail | 71mm | 63mm | 58mm | 58mm | 55mm | 55mm | 52mm |
| Fork Length, Full | 370mm | 370mm | 370mm | 370mm | 370mm | 370mm | 370mm |
| Fork Rake/Offset | 47mm | 47mm | 47mm | 44mm | 44mm | 44mm | 44mm |
| Front Center | 572mm | 574mm | 577mm | 579mm | 592mm | 606mm | 613mm |
| Chainstay Length | 410mm | 410mm | 410mm | 410mm | 410mm | 410mm | 410mm |
| Wheelbase | 970mm | 973mm | 975mm | 978mm | 991mm | 1006mm | 1013mm |
| Top Tube Length, Horizontal | 496mm | 509mm | 531mm | 541mm | 563mm | 577mm | 595mm |
| Bike Standover Height | 723mm | 735mm | 746mm | 768mm | 786mm | 808mm | 834mm |
| Seat Tube Length | 433mm | 445mm | 456mm | 473mm | 494mm | 515mm | 545mm |
| Seat Tube Angle | 75.5° | 75.5° | 74° | 74° | 73.5° | 73.5° | 73° |
