Product Info
Details + Specs
Tarmac SL8 Pro - Shimano Ultegra Di2
Made to race
Nothing is faster than the Tarmac SL8. 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-optimised performance of the all-new Roval Rapide CL III wheels.
Best for: Road racing, fast group rides and performance-focused training.
At a glance
Frame
Tarmac SL8 FACT 10r Carbon, Rider First Engineered™, Win Tunnel…
Drivetrain
Shimano Ultegra Di2 R8150, 12-speed
Fork
FACT 10r Carbon, 12x100mm thru-axle, flat-mount disc
Front/Rear Brake
Shimano Ultegra BR-R8170, hydraulic disc
Shift Levers
Shimano Ultegra Di2 R8170, hydraulic disc
Front Derailleur
Shimano Ultegra Di2 R8150, braze-on
Key highlights
15% lighter than the Tarmac SL7 with a 33% improvement in stiffness-to-weight, so more of every watt goes into forward motion.
A reshaped nose cone and narrow, UCI-legal aero seatpost cut drag at the leading edge, making the SL8 more aerodynamic than the Venge.
A full Ultegra R8100-series Di2 groupset paired with a 4iiii Precision 3+ power meter (with Apple Find My support) means it's ready to race out of the box.
Tubeless-ready carbon wheels built specifically around the SL8's aero-first philosophy.
Complete specification
Full build details
Components are grouped by bike system so the complete build is easy to scan.
Frameset
Frame
Tarmac SL8 FACT 10r Carbon, Rider First Engineered™, Win Tunnel Engineered, threaded BB, 12x142mm thru-axle, flat-mount disc (685g)
Suspension
Fork
FACT 10r Carbon, 12x100mm thru-axle, flat-mount disc
Brakes
Front/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 R8100 with 4iiii Precision 3+ power meter, 52/36t
Bottom Bracket
Shimano Threaded BSA
Wheels and tyres
Front/Rear Wheel
Roval Rapide CL III, carbon, tubeless-ready, 21mm internal width, DT Swiss 350 hubs
Tyres
S-Works Turbo, 700x26c, tubeless-ready
Cockpit and contact points
Handlebar/Stem
Roval Rapide integrated bar/stem
Seatpost
S-Works Tarmac SL8 Carbon, FACT Carbon, 15mm offset
Saddle
Power Pro with Mirror, hollow Ti rails
Component specifications are subject to change without notice.
Frequently bought with