SpecializedTarmac SL8 Pro – Ultegra Di2 2025 bike details 01
SpecializedTarmac SL8 Pro – Ultegra Di2 2025 bike details 02
SpecializedTarmac SL8 Pro – Ultegra Di2 2025 bike details 03
SpecializedTarmac SL8 Pro – Ultegra Di2 2025 bike details 04
SpecializedTarmac SL8 Pro – Ultegra Di2 2025 bike details 05

Where to buy

Lowest price now: £5,699.00 Best price ever seen: £5,699.00 Price drop detected Prices update every ~24 hours
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Best deal
£5,699.00
RRP £7,249.00
↓ £1,550.00 (21.38%)
Balfe's Bikes
SpecializedTarmac SL8 Pro – Ultegra Di2
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£5,999.00
RRP £7,249.00
↓ £1,250.00 (17.24%)
Specialized Concept Store
SpecializedTarmac SL8 Pro – Ultegra Di2
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Price currently unavailable
Leisurelakesbikes
SpecializedTarmac SL8 Pro – Ultegra Di2
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Summary

The SpecializedTarmac SL8 Pro – Ultegra Di2, a Road bike released in 2025, priced at £8250. It weighs approximately 7.2kg (size dependent). The frame is Carbon Fiber and the fork is Carbon Fiber. The bike is equipped with a Shimano Ultegra Di2 R8150, braze-on groupset (Electric Shifting: Yes). It uses Disc Brake. It rolls on a Roval Rapide CL II wheelset. It features a Shimano Threaded BSA bottom bracket. It uses Internally Routed cable routing. It supports tyres up to 32 mm. Yes It comes with a lifetime warranty. Curious how it stacks up against similar bikes? Compare below...

Bike Info

Worldwide Shipping: Yes

Delivery across the globe!

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Warranty: Lifetime

Limited warranty website average: 3.12 years

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Released: 2025

The bike was released 1 years ago

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Bike Type: Road

The style of riding intended for this bike

Bike Spec

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Weight: 7.2 kg

The website average for Road bikes is 8.56 kg. This bike is 1.36 kg under the average. Total bike weight may vary depending on frame size.

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Groupset

Shimano Ultegra Di2 R8150, braze-on

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Wheelset

Roval Rapide CL II

Disc Brake

Brake Type: Disc Brake

Welcome to the future!

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Frameset Material

Carbon Fiber

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Max Tire Size: 32 mm

This is the max tire size you can use

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UCI Approved: Yes

You can use for official races

Sizing & Geometry

Frame Sizes

44 49 52 54 56 58 61

This frame comes in 7 sizes, this is 1.44 more sizes than the website average.

Handebar Sizes Available

38 40 42 44

Crank Arm Sizes Available

165 170 172.5 175

Frame Details

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Frame Weight

Unknown

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Frame Material

Carbon Fiber

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Forks

Tarmac SL8 FACT 10r Carbon, Rider First Engineered™, Win Tunnel Engineered, Clean Routing, Threaded BB, 12x142mm thru-axle, flat-mount disc

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Fork Material

The forks are made from Carbon Fiber

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Cables: Internally Routed

Routed through bars, stem and frame

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Axel Type: Thru-axle

How the wheels are secured to the frame

Disc Brake

Brake Type: Disc Brake

Welcome to the future!

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Brake Mount: Flat Mount

How the calipers are mounted

No

Integrated bar and stem: No

You can use any bar and stem

Drivechain Details

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Groupset name

Shimano Ultegra Di2 R8150, braze-on

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Electric Groupset: Yes

This bike has electric gears

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Shifters

Shimano Ultegra Di2 R8170, hydraulic disc

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Front Derailleur

Shimano Ultegra Di2 R8150, braze-on mounting type.

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Rear Derailleur

Shimano Ultegra Di2 R8150, 12-speed

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Cassette

Shimano Ultegra R8100, 12-speed.

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Cranks

Shimano Ultegra R8100

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Power Meter: Yes

This bike comes with a power meter

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Bottom Bracket

Shimano Threaded BSA

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Chain

Shimano Ultegra, 12-speed (Note: Certain manufacturing batches are officially documented using a Shimano XT CN-M8100 12-speed chain, which is fully cross-compatible with Shimano HG 12-speed road systems).

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Battery

Unknown

Wheel & Tire Details

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Wheelset Name

Front: Roval Rapide CL II, 21mm internal width carbon rim tubeless ready, Win Tunnel Engineered, DT for Roval 350 hub, DT Swiss Revolution spokes, 51mm depth, Rear: Roval Rapide CL II, 21mm internal width carbon rim tubeless ready, Win Tunnel Engineered, DT for Roval 350 hub, DT Swiss Revolution spokes, 60mm depth

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Front Wheel Depth

51mm

Rear Wheel Depth Icon

Rear Wheel Depth

60mm

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Tires

Front: S-Works Turbo, 2BR, 700x26mm, Rear: S-Works Turbo, 2BR, 700x26mm

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Tire Type

Clincher

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Max Tire Size: 32 mm

This is the max tire size you can use

Brakes

Disc Brake

Brake Type: Disc Brake

Welcome to the future!

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Brake Mount: Flat Mount

How these disc brakes are mounted

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Brakes

Front: Shimano Ultegra Di2 R8170, hydraulic disc 160mm rotor, Rear: Shimano Ultegra Di2 R8170, hydraulic disc 140mm rotor

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Brake Rotors

160 mm front rotor / 140 mm rear rotor

Other Components

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Saddle

Power Pro with Mirror

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Seatpost

S-Works Tarmac SL8 Carbon seat post

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Handlebars

Roval Rapide Cockpit, Integrated Bar/Stem

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Bar Tape

Supacaz Super Sticky Kush