Specialized S-Works Tarmac SL8 Road Bike Carbon RTP Frameset 2025 Satin Carbon/Silver to Green Pearl

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. Your legs up for it?

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 the 585-gram Aethos frame during a Tour stage.

68mm threaded bottom bracket, flat mount disc brakes, and no-hassle seamless integration — the S-Works Tarmac SL8 Frameset is the ultimate starting point for your dream build.

The Satin Carbon/Silver to Green Pearl colourway is the lightest finish Specialized offer on an S-Works Tarmac SL8 Frameset. It’s also the perfect canvas if you are craving custom paint. This is their RTP—Ready To Paint—colourway, allowing you to imagine the build, colours, and design of your dreams, then work with a custom painter to make it a reality.

Key Features & Benefits

• Aero in everything:Utilizing new UCI rules, the Tarmac SL8 has the narrowest, most aero seat post Specialized have ever made ensuring fast-moving, dirty air around the legs can flow back more cleanly.
• Massive gains in stiffness-to-weight: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.
• Tarmac’s new nose cone: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.

Full Specification

• Frame:S-Works Tarmac SL8 FACT 12r Carbon, Rider First EngineeredTM, Win Tunnel Engineered, Clean Routing, Threaded BB, 12x142mm thru-axle, flat-mount disc
• Fork:S-Works FACT 12r Carbon, 12x100mm thru-axle, flat-mount disc
• Seatpost:S-Works Tarmac SL8 Carbon seat post, FACT Carbon, 15mm offset
• Seat Binder:Tarmac integrated wedge
• Weight:56cm – 1.38 kg (3 lb, 0.7 oz)