• 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. Clean air is optimized for maximum advantage with the Tarmac’s new nose cone - the Speed Sniffer. By moving the steer tube back - the tube that determines head tube width - the leading edge of the head tube can be much sharper, delivering a much lower drag shape. Utilizing new UCI rules, the Tarmac SL8 has the narrowest, most aero seat post we’ve ever made ensuring fast moving, dirty air around the legs can flow back more cleanly. Doesn’t victory smell sweet?
• MINIMUM WEIGHT, MAXIMUM AERO: Tarmac SL8 took learnings from Aethos to be easily built at the UCI minimum with a full aero set up. The team delivered a mind bending, scale tickling 685 gram frame - 15% lighter than the Tarmac SL7 and lighter than anything on else on the World Tour*. With the ability to make lightweight a top priority in the down tube, seat tube, and rear of the bike lessons from Aethos were applied. The frame’s shape carries load so efficiently that extra carbon stiffness layers become redundant. *Unless of course you count the time Kasper Asgreen raced our 585 gram Aethos frame during a Tour stage.
• 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. The bike is stiffer at the pedals, more precise at the bars, and combines it with a compliant ride in the saddle that sets a new benchmark for race bike comfort. Thanks to our Rider-First Engineering, every rider, regardless of size, gets the same unprecedented ride quality and handling. In the saddle the Tarmac SL8 delivers 6% more compliance, floating over rough road with a supple feel unique in the high strung world of race bikes. Tarmac’s proven geometry and 32mm tire clearance are identical to the SL7, ensuring easy adaptation and the versatility to run higher volume tires when needed.
• BEYOND GENDER: There can be more difference between two male cyclists than between a male and female. Gender alone doesn’t provide nearly enough data to specialize and that means creating male or female bikes is arbitrary and outdated. Every rider can get the next level advantage of Tarmac SL8. It’s time to go Beyond Gender.
• The Tarmac SL8 Comp Di2 delivers exceptional performance with a full 105 Di2 groupset, DT R470 tubeless ready wheelset, and an SL7 stem with Specialized Shallow Drop alloy handlebars makes for an accessible performance-packed bike

The Tarmac SL8 is built on a FACT 10r Carbon frame that’s Rider First Engineered™, Win Tunnel optimized, and features clean cable routing, a threaded bottom bracket, 12x142mm thru-axle, and flat-mount disc compatibility. Paired with a FACT 10r Carbon fork with a 12x100mm thru-axle and flat-mount disc, it delivers precision handling and responsiveness. Braking is handled by Shimano 105 hydraulic disc brakes, while the drivetrain features Shimano 105 Di2 electronic shifting with a 12-speed setup, including the R7170 shift levers, 105 braze-on front derailleur, and 105 7150 rear derailleur. The Shimano 105 crankset pairs with an 11-34t cassette, Shimano SLX 12-speed chain, and threaded BSA bottom bracket for smooth and efficient power transfer. Rolling on DT Swiss R470 tubeless-ready rims with 20mm internal width, sealed bearing hubs, DT Swiss Champion stainless spokes, and brass nipples, it’s equipped with 700x26mm S-Works Turbo tires featuring BlackBelt protection and Turbo Ultralight tubes. The cockpit includes a Body Geometry Power Sport saddle with steel rails, an S-Works Tarmac SL8 carbon seatpost with 15mm offset, Specialized Shallow Drop handlebars wrapped in Supacaz Super Sticky Kush tape, and a Tarmac integrated 6-degree stem. An integrated wedge seat binder and headset spacer kit for SL7 stems and Roval Rapide cockpits complete this performance-driven build.