This item is no longer available to buy. View similar products.

Free Premier Delivery

Specialized S-Works Tarmac SL8 Forward 50 LTD Road Bike

This item is no longer available to buy. View similar products.

Free Premier Bike Delivery

Have this bike hand-delivered free of charge by a qualified mechanic to your doorstep.  For a limited time, this bike is available via our Premier Bike Delivery free of charge.

View all eligible bikes

Product ID: 1828849

Specialized S-Works Tarmac SL8  Forward 50 LTD Road Bike

Celebrating 50 years of innovation and setting sights on the next 50, the Tarmac SL8 Forward 50 LTD embodies a commitment to advancing cycling technology. As the fastest, most innovative road race bike globally, the Tarmac SL8 is the ultimate platform.

AERO IN EVERYTHING:
Aero optimization is crucial, particularly at the leading edge. The Tarmac SL8 is our most aerodynamic road bike ever, surpassing even the Venge. The new nose cone, the Speed Sniffer, maximizes clean air advantage by moving the steer tube back, allowing for a sharper, lower drag head tube. Utilizing new UCI rules, the Tarmac SL8 features the narrowest, most aero seat post, ensuring smooth airflow around the legs.

MINIMUM WEIGHT, MAXIMUM AERO:
Inspired by the Aethos, the Tarmac SL8 is designed to meet the UCI minimum weight with a full aero setup. The frame weighs a mere 685 grams—15% lighter than the Tarmac SL7 and lighter than any other World Tour bike. Prioritizing lightweight construction, especially in the down tube, seat tube, and rear, has allowed for a frame shape that efficiently carries loads, eliminating the need for extra carbon stiffness layers.

GOES LIKE HELL, RIDES LIKE HEAVEN:
The Tarmac SL8 boasts a 33% improvement in stiffness-to-weight over the SL7, enhancing handling, responsiveness, and World Championship-proven geometry. The bike is stiffer at the pedals and more precise at the bars, while offering unparalleled ride comfort. Rider-First Engineering ensures every rider experiences the same exceptional ride quality and handling, regardless of size. With 6% more compliance, the Tarmac SL8 provides a supple ride over rough roads. Proven geometry and 32mm tire clearance ensure adaptability and versatility.

Technical Specification

Frame S-Works Tarmac SL8 FACT 12r Carbon, Rider First Engineered™, 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
Handlebars Roval Rapide Cockpit, Integrated Bar/Stem
Stem Roval Rapide Cockpit, Integrated Bar/Stem
Tape Supacaz Super Sticky Kush
Saddle S-Works Power with Mirror, Forward 50 LTD
Seatpost S-Works Tarmac SL8 Carbon seat post, FACT Carbon, 15mm offset, Forward 50 LTD
Front Brake Shimano Dura-Ace R9270, hydraulic disc
Rear Brake Shimano Dura-Ace R9270, hydraulic disc
Seat Binder Tarmac Integrated Wedge
Shift Levers Shimano Dura-Ace R9270, hydraulic disc
Front Derailleur Shimano Dura-Ace R9250, braze-on
Rear Derailleur Shimano Dura-Ace R9250, 12-speed, Ceramic Speed Pulley Wheels
Cassette Shimano Dura-Ace, 12-speed, 11-30t
Chain Shimano Dura-Ace, 12-speed
Crankset Shimano Dura-Ace R9200, HollowTech II, 12-speed with 4iiii PRECISION 3+ Powermeter Dual-Sided
Chainrings 52/36T
Bottom Bracket Ceramic Speed BSA - Shimano
Front Wheel Rapide CLX II Team Forward 50 LTD, Hooked, 700c, Disc Brake, Tubeless, 51mm-Depth, 21mm Internal Width, DT Swiss Aerolite II spokes, Ceramic Bearings
Rear Wheel Rapide CLX II Team Forward 50 LTD, Hooked, 700c, Disc Brake, Tubeless, 60mm-Depth, 21mm Internal Width, DT Swiss Aerolite II spokes, Ceramic Bearings
Front Tyre S-Works Turbo Rapidair 2BR, 700x26mm
Rear Tyre S-Works Turbo Rapidair 2BR, 700x26mm
Inner Tubes Turbo Ultralight, 60mm Front, 80mm Rear, Presta valve
Headset Ceramic Speed SLT Headset bearings
Weight 6.65kg (14 lb, 10.6 oz)
Weight Size 56

Built, Checked, Tuned and Tested

All our bikes are fully built, checked, tuned and tested by our Cytech qualified mechanics and then securely packaged, ready for delivery. All you have to do is add the pedals (if included), attach the handlebars to the stem and tighten them following the included detailed instructions or by watching our video and using the provided FREE tools. Visit our Bike Assembly page to see how you assemble your new bike once you receive it.

All bikes collected from our shop, are built, tested and ready to ride. For hassle-free home delivery and bike set-up from a qualified mechanic use our Premier Delivery Service

Please note, occasionally, manufacturers may change the specification without notice. Bicycles do not come with pedals unless otherwise specified. Bikes ordered for delivery will not arrive with the pedals installed, please refer to the owners manual and pedal installation guides provided for guidance. We do not install accessories to bikes, including mudguards. Bikes ordered for delivery that have tubeless compatible tyres and rims will arrive with inner tubes installed or with tubeless valves installed, this will be brand dependent. Sealant is available to be purchased separately.

If you require any assistance please contact our Customer Care team.


Specialized S-Works Tarmac SL8 Forward 50 LTD Road Bike Sizing



Unable to display Reviews due to Privacy Settings.

Adjust your Cookie Preferences to Opt-in "YES" to "Functional Cookies".

Unable to display Q&A due to Privacy Settings.

Adjust your Cookie Preferences to Opt-in "YES" to "Functional Cookies".

Why buy your bike from Sigma Sports?

sigma sports expert advice
Expert Advice

Don't hesitate to reach out to us. It's our goal to answer all of your questions and offer the best advice from our experts. We’ll be happy to answer any questions you may have. Contact us now or visit us in-store.

sigma sports cycle schemes
Cycle to Work Schemes

Save up to 47% with any one of our 11 Cycle to Work partners, and get the health benefits of a new bike in exchange for tax free salary sacrifice. To find out more about our various partners and how to apply click here.

Bike Delivery Options

Choose between Free Bike Delivery - to your home or place of work - or our new Premier Bike Delivery Service £99.99 and have your bike delivered "ready to ride" and set up to your measurements with seatpost and pedals adjusted on arrival by a qualified bike mechanic. Either way, our Customer Care team will be in touch to arrange a delivery date to suit you.

laka insurance
Laka Insurance

We've partnered with Laka to offer you 30 days free bike Insurance on your new bike purchase over £400. Click here for more info and find out how to claim.