Specialized Tarmac SL8 Frameset (Satin Blue Onyx/Black) (56cm) (10r)

Specialized Tarmac SL8 Frameset (Satin Blue Onyx/Black) (56cm)
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Price: $3,499.99

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Specialized Tarmac SL8 Frameset Description:

The Specialized Tarmac SL8 Frameset is designed for speed across any ride profile. Building upon the SL7's "one bike to rule them all" mantra, the Tarmac SL8 takes this all-around winning design and shaves weight while prioritizing aerodynamics and stiffness. This 1.69 kg (size 56cm) frame is made from FACT 10r Carbon. While slightly heavier than its S-Works counterpart (around 320g heavier), the SL8 frame provides the same level of compliance as its big sibling. The "Speed Sniffer" front design sets the headtube back away from the bike's leading edge, allowing for a sharper, lower drag shape. Regarding its stiffness-to-weight ratio, the SL8 provides a 33% gain over the SL7, making this bike equally suitable for all-out sprints or hillclimb finishes. The SL8 is a winning formula designed to take on the most competitive races in the world.


  • Aero In Everything design prioritizes aerodynamics in every element of the frame design
  • The "Speed Sniffer" sets the headtube back and creates a sharper edge and lower drag shape
  • Lighter than the SL7 while remaining super stiff (33% increase in stiffness-to-weight ratio)
  • S-Works Tarmac SL8 FACT carbon seatpost is narrower and more aero 
  • 32mm tire clearance allows riders to run wider road tires
  • Frame is designed to be "beyond gender" as Specialized research shows there is no need for separate bike designs for men and women
  • The threaded BSA bottom bracket compatibility provides easy maintenance and is less likely to develop creaking noises
  • Only compatible with Shimano Di2 and SRAM AXS groupsets


  • Frame Material: FACT 10r Carbon
  • Fork Material: FACT Carbon (47mm Offset Sizes: 44 - 52cm) (44mm Offset Sizes 54 - 61cm)
  • Headset: Included
  • Headset Size: S162500005 (Upper and Lower Replacement Bearing)
  • Brake Compatibility: Disc Only (Hydraulic or Mechanical)
  • Brake Mounts: Flat Mount
  • Rotor Compatibility: 160 Only (Front), 140 or 160mm (Rear)
  • Axle Type: Thru Axle
  • Hub Spacing: 12 x 100mm (Front), 12 x 142mm (Rear)
  • Stem: Included
  • Stem Size: 1-1/8” (Tarmac Integrated Stem) (6°)
  • Seatpost: Included (S-Works Tarmac SL8 Carbon Seatpost)
  • Seatpost Diameter: Specialized D-Shaped
  • Seatpost Clamp: Tarmac Integrated Seatpost Wedge
  • Bottom Bracket: Not Included
  • Bottom Bracket Type: Threaded BSA
  • Bottom Bracket Width: 68mm
  • Drivetrain Compatibility: 1x and 2x Compatible (Electronic Only)
  • Chainring Compatibility: Maximum chainring size: 1 x 42T or 2 x 55T
  • Tire Clearance: 32mm
  • Cable Routing: Internal
  • Dropper Post Routing: No
  • Water Bottle Bosses: 2 Mounting Positions (Downtube & Seattube)
  • Fender/Rack Mounts: No
  • Color: Satin Blue Onyx/Black
  • Weight: 1690g (56cm)


  • Frame & Fork
  • Tarmac Integrated Stem
  • (1) Headset
  • (1) Seatpost (300mm Size: 44 - 52cm) (380mm Size: 54 - 61cm)
  • (1) S206000001 Derailleur Hanger
  • (1) Front Derailleur Mount Backing Plate (For use with 2x drivetrain)
  • (1) Front Derailleur Mount Cover (For use with a 1x drivetrain)
  • (2) 12mm Thru Axles (100mm Front, 142mm Rear)

This product was added to our catalog on August 6, 2023

Sizing Recommendations for Riders Who Fall Between Sizes:

  • Sizing down will provide a more maneuverable ride while sizing up will provide more stability
Rider Height (Feet)Rider Height (CM)
44cm4'8" - 5'1"142 - 155cm
49cm5'1" - 5'4"155 - 163cm
52cm5'4" - 5'7"163 - 170cm
54cm5'7" - 5'9"170 - 175cm
56cm5'9" - 5'11"175 - 180cm
58cm5'11" - 6'2"180 - 188cm
61cm6'2" - 6'5"188 - 196cm

Note: All sizing recommendations are provided by the manufacturer and may differ for each rider.

Frame Size (cm)44cm49cm52cm54cm56cm58cm61cm
Seatpost Length (mm)300300300380380380380
Stem Length (mm)708090100100110110
Stack to Stem (mm)509522535552573599620
Reach to Stem (mm)363372377381393400406
Frame Stack (mm)501514527544565591612
Frame Reach (mm)366375380384395402408
Head Tube Length (mm)99109120137157184204
Head Tube Angle (Degrees)70.571.7572.57373.573.574
Bottom Bracket Height (mm)266266266268268268268
Bottom Bracket Drop (mm)74747472727272
Trail (mm)71635858555552
Fork Length, Full (mm)370370370370370370370
Fork Rake/Offset (mm)47474744444444
Front Center (mm)572574577579592606613
Chainstay Length (mm)410410410410410410410
Wheelbase (mm)97097397597899110061013
Top Tube Length (Horizontal) (mm)496509531541563577595
Bike Standover Height (mm)723735746768786808834
Seat Tube Length (mm)433445456473494515545
Seat Tube Angle (Degrees)75.575.5747473.573.573

Note: All measurements are provided by the manufacturer and may vary depending on how measurements are acquired.