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2045739 / 54479003091290

Product Details

Specialized Tarmac SL9 Expert Ultegra Di2 Road Bike

Engineered to convert every ounce of effort into blistering real-world speed, the Specialized Tarmac SL9 Expert Ultegra Di2 Road Bike represents the benchmark for modern road racing performance. Built around an advanced FACT 10r carbon frame that is both Rider-First Engineered and wind-tunnel optimized, this race machine strikes the perfect compromise between lightweight agility and aerodynamic efficiency. Weighing in at just 7.53 kilograms, it provides exceptional responsiveness on steep ascents and supreme stability on rapid descents, ensuring ambitious riders achieve their fastest possible time to finish.

Electronic Shifting and Precision Components

Power transfer and gear management are handled seamlessly by the world-class Shimano Ultegra Di2 12-speed electronic drivetrain, delivering lightning-fast, precise shifts at the touch of a button. Paired with reliable Ultegra hydraulic disc brakes, riders gain absolute control and stopping confidence across all weather conditions and terrain profiles. The bike rolls on lightweight Roval C38 carbon tubeless-ready wheels wrapped in high-performance S-Works Turbo tyres, offering lower rolling resistance, fantastic cornering traction, and an ultra-smooth ride quality.

Race Ergonomics and Practical Design

Designed for both competitive racers and dedicated enthusiasts, the cockpit pairs an aerodynamic Roval Rapide alloy stem with Specialized Expert shallow drop handlebars for comfortable hand positioning during long efforts. The setup is anchored by a Body Geometry Power Expert saddle with hollow titanium rails and an S-Works carbon seatpost to damp road vibrations and reduce fatigue over long distances. Combining elite race heritage with durable, high-value components, this complete package provides third-party buyers with an irresistible upgrade ready to dominate local races, sportive events, and fast group rides.

Features
  • Frame: Tarmac SL9 FACT 10r Carbon, Rider First Engineered, Wind Tunnel Engineered, Threaded BB, 12x142mm thru-axle, flatmount disc, UDH dropout
  • Fork: FACT 12r Carbon, 12x100mm thru-axle, flat-mount disc
  • Front Brake: Shimano Ultegra BR-8170, hydraulic disc
  • Rear Brake: Shimano Ultegra BR-8170, hydraulic disc
  • Shift Levers: Shimano Ultegra Di2 ST-R8170, hydraulic disc
  • Front Derailleur: Shimano Ultegra Di2 FD-R8150, braze-on
  • Rear Derailleur: Shimano Ultegra Di2 RD-R8150, 12-speed
  • Cassette: Shimano Ultegra CS-R8100, 12-speed, 11-34t
  • Chain: Shimano XT CN-M8100, 12-speed
  • Crankset: Shimano Ultegra R8100, 52/36
  • Bottom Bracket: Shimano Threaded BSA BB
  • Front Wheel: Roval C38, 21mm internal width carbon rim, tubeless ready
  • Rear Wheel: Roval C38, 21mm internal width carbon rim, tubeless ready
  • Tyres: S-Works Turbo, 700x30
  • Inner Tubes: 700x24-34, 60mm presta valve
  • Stem: Roval Rapide, alloy, 4 bolt, -6 degrees
  • Handlebar: Specialized Expert Shallow Drop, alloy, 125mm drop x 75mm reach
  • Bar Tape: Supacaz Super Sticky Kush
  • Saddle: Body Geometry Power Expert, hollow Ti rails
  • Seatpost: S-Works Tarmac SL8 Carbon seat post, FACT Carbon, 15mm offset
  • Seat Binder: Tarmac integrated wedge
  • Weight: 7.53 kg (56cm)
Specifications
Model
Tarmac SL9 Expert Ultegra Di2
Bottom Bracket [Maker]
Shimano
Bottom Bracket Standard
BSA
Brakes [Kind]
Hydraulic Disc
Brakes [Maker]
Shimano
Brakes [Model]
Ultegra BR-8170
Cassette [Gearing]
11-34
Cassette [Maker]
Shimano
Cassette [Model]
Ultegra CS-R8100
Chain [Maker]
Shimano
Chain [Model]
XT CN-M8100
Chainring [Gearing]
52–36
Crank [Maker]
Shimano
Crank [Model]
Ultegra R8100
Discipline Compatibility
Road
E-Bike
No
F Hub [Maker]
Roval
Family
Tarmac
FD [Maker]
Shimano
FD [Model]
Ultegra Di2 FD-R8150
Fenders Mounts
No
Fork [Axle Diameter]
12 mm
Fork [Axle Type]
Thru-Axle
Fork [Brake Type]
Disc
Fork [Maker]
Specialized
Fork [Material]
Carbon
Fork [Model]
FACT 12r
Fork [Wheel Size]
700c
Frame [Hanger Standard]
UDH
Frame [Material]
Carbon
Frame [Tire Clearance]
30c mm
Frameset
No
Gearing [Configuration]
2x
Gearing [Kind]
Conventional
Gender
Unisex
Handlebar [Drop]
125 mm
Handlebar [Kind]
Drop
Handlebar [Maker]
Specialized
Handlebar [Material]
Aluminium
Handlebar [Reach]
75 mm
Handlebar [Shape]
Shallow Drop
Handlebar [Width]
31.8 mm
R Hub [Maker]
Roval
Rack Mounts
No
RD [Maker]
Shimano
RD [Model]
Ultegra Di2 RD-R8150
Saddle [Maker]
Specialized
Saddle [Material]
Titanium
Seatpost [Maker]
Specialized
Seatpost [Material]
Carbon
Seatpost [Offset]
15 mm
Shifters [Maker]
Shimano
Shifters [Model]
Ultegra Di2 ST-R8170
Shifting
Electronic
Stem [Angle]
-6 degree
Stem [Maker]
Roval
Stem [Material]
Aluminium
Sub Family
Tarmac SL9
Suspension Configuration
Rigid
Tires [Maker]
Specialized
Tires [Width]
30 mm
Wheels [Configuration]
Front+Rear
Wheels [Kinds]
Tubeless Ready
Wheelset [Inner Width]
21 mm
Wheelset [Maker]
Roval
Wheelset [Material]
Carbon
Wheelset [Model]
C38
Product code
2045739 / 54479003091290
Size Guide
Specialized Aethos Size Guide 2022

All sizes are shown in millimetres unless otherwise stated.

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Shipping & Returns

Free UK delivery on orders over £50. Orders are dispatched within 1-2 working days and typically arrive 1-2 working days later.

Return unused items in their original packaging within 30 days of delivery. Return postage is £3.50.

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About Specialized

Innovate or die.

Founded in California in 1974, Specialized began with a simple promise: serious riders deserve serious gear. Half a century later, the brand still funds its own wind tunnel, builds its own carbon, and tests every bike with the world's best so that you ride your own best.

The first production mountain bike. The first cycling-specific shoes. FACT carbon, the Win Tunnel, S-Works. Specialized has a habit of building the things the rest of cycling ends up copying.