Product Info
Details + Specs
S-Works Tarmac SL8 - Shimano Dura-Ace Di2
Made to race
Nothing is faster than the Tarmac SL8 — a combination of aerodynamics, low weight, 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 CLX III wheels.
Best for: Road racing, fast group rides and performance-focused training.
At a glance
Frame
S-Works Tarmac SL8 FACT 12r Carbon, Rider First Engineered™, threaded BB…
Drivetrain
Shimano Dura-Ace RD-R9250, 12-speed
Weight
approx. 6.67kg (14lb 11.3oz), size 56
Fork
S-Works FACT 12r Carbon, 12x100mm thru-axle, flat-mount disc
Brakes (Front/Rear)
Shimano Dura-Ace BR-R9270, hydraulic disc
Shift Levers
Shimano Dura-Ace R9270, hydraulic disc
Key highlights
a 685-gram Rider First Engineered™ frame (size 56), the lightest chassis in the Tarmac SL8 range, built to turn every watt into forward motion.
flagship 12-speed electronic shifting with a 4iiii dual-sided power meter built into the crank.
deep-section carbon wheels (51mm front / 48. 5mm rear) for a genuine aero step up on the world's fastest frame.
a one-piece aero bar/stem that saves weight and cleans up the leading edge for maximum speed.
Complete specification
Full build details
Components are grouped by bike system so the complete build is easy to scan.
Frameset
Frame
S-Works Tarmac SL8 FACT 12r Carbon, Rider First Engineered™, threaded BB (68mm BSA), 12x142mm thru-axle, flat-mount disc (685g, size 56)
Suspension
Fork
S-Works FACT 12r Carbon, 12x100mm thru-axle, flat-mount disc
Brakes
Brakes (Front/Rear)
Shimano Dura-Ace BR-R9270, hydraulic disc
Drivetrain
Shift Levers
Shimano Dura-Ace R9270, hydraulic disc
Rear Derailleur
Shimano Dura-Ace RD-R9250, 12-speed
Cassette
Shimano Dura-Ace, 12-speed, 11-30t
Chain
Shimano XTR M9100, 12-speed, with quick link
Crankset
Shimano Dura-Ace R9200 with 4iiii Precision Pro dual-sided power meter, 52/36t
Bottom Bracket
Shimano Dura-Ace, BB-R9100
Wheels and tyres
Wheels (Front/Rear)
Roval Rapide CLX III, tubeless-ready carbon, 51mm front / 48.5mm rear depth
Tyres
S-Works Turbo TLR Race Tire, 700x28c
Cockpit and contact points
Handlebar/Stem
Roval Rapide Cockpit, integrated bar/stem
Seatpost
S-Works Tarmac SL8 Carbon, FACT Carbon, 15mm offset
Saddle
S-Works Power with Mirror
Weight and sizing
Weight
approx. 6.67kg (14lb 11.3oz), size 56
Weight is based on a production painted bike in the stated reference size. Actual weight can vary with colour, size and component variation. Specifications are subject to change without notice.