When Specialized developed the Tarmac Disc, they didn't just want it to be fast. They wanted it to be fast everywhere. Long climbs, windy flats, Grand Tour stages, local fondos—they built a race bike to be the most complete out there. How’d they do it? They started with their Rider-First Engineered™ frame with a perfectly-tuned ride quality for every size, added in some serious aero tech that makes it 45 seconds faster over 40 kilometers than the Tarmac SL5, and then made it 20% lighter. Nothing is lighter, faster, and better handling. The build spec on this Tarmac Disc is value-packed, featuring Shimano Ultegra Di2 electronic shifting and hydraulic disc brakes, a Roval C 38 Disc carbon fiber wheelset, S-Works Turbo tires, and their fan-favorite Power saddle.
For the construction of the Tarmac, they utilized advanced aerospace composite optimization software to revolutionize the construction and layup of their new FACT 10r carbon. It's the most schedule, they've ever made and this allowed them to shed nearly 200 grams. That's right, a 20% reduction in frame weight—the perfect recipe for your next hill climb PR.
500 pieces creating 7 different sizes with the same tuned ride–that’s Rider-First Engineered™. They examine every ply of carbon on every frame size to ensure that all of their performance targets come through. To make sure you get the perfect ride, every frame gets a unique layup schedule with different ply arrangements, orientations, quantities of material in specific areas, and sometimes, even exclusive thicknesses and types of carbon itself.
Aerodynamics is the most important thing Specialized can do to make you faster, but with the Tarmac, they added aero features without any cost to weight. Through development, three areas were discovered where they could add aero for free—a new fork shape, dropped seatstays with aero tubes, and a D-shaped seatpost and seat tube. The result? A Tarmac that’s approximately 45 seconds faster over 40 kilometers.
The updated the geometry is based on countless Retül data points and professional rider input. This enabled Specialized to develop a Performance Road Geometry that perfects the combination of a responsive front-end and short wheelbase, which delivers instantaneous response and optimal power transfer.
For additional compliance, the seatpost has flex built-into the upper 120mm where clamping doesn't happen. Specialized also dropped the seatstays, altered the seat tube shape, and added tire clearance up to 30mm.
|Frame||Tarmac SL6, FACT 10r carbon, Rider-First Engineered™, OSBB, clean routing, internally integrated seat clamp, 12x142mm thru-axle, flat-mount disc|
|Fork||FACT 10r carbon, 12x100mm thru-axle, flat-mount disc|
|Rims/Wheels||Roval C 38 Disc, carbon, tubeless-ready, 38mm depth, 24h|
|Tires||S-Works Turbo, 120 TPI, folding bead, BlackBelt protection, 700x26mm|
|Crankset||Shimano Ultegra R8000, HollowTech 2, 11-speed, 52/36T|
|Bottom Bracket||Praxis, BB30 for Shimano|
|Chain||Shimano Ultegra, 11-speed|
|Front Derailleur||Shimano Ultegra Di2 R8050, braze-on|
|Rear Derailleur||Shimano Ultegra Di2 R8050, GS medium cage|
|Rear Cogs||Shimano Ultegra R8000, 11-speed, 11-30t|
|Shifters||Shimano Ultegra Di2 Disc R8070|
|Handlebars||Specialized Expert Shallow Drop, alloy, 125mm drop x 75mm reach|
|Stem||Specialized Pro SL, alloy, 4-bolt|
|Brakes||Shimano Ultegra R8070, hydraulic disc|
|Saddle||Body Geometry Power Expert, Hollow Titanium rails|
|Seat Post||S-Works FACT Carbon Tarmac seatpost, 20mm offset|
|Seat Binder||Tarmac SL6 clamp assembly|
* Subject to change without notice.
|Satin Black/Chameleon/Gloss Tarmac Black / 56||90620-3156||13281|