SHEET 132 OF 309 · Specialized · 2026 · endurance

Aethos 2 Pro - Shimano Ultegra Di2

Name: Specialized Aethos 2 Pro - Shimano Ultegra Di2
Brand: Specialized
Price: 7249 GBP
Availability: InStock

Round-tube carbon road bike with Ultegra Di2, a power meter and 28mm tyres, 6.73kg claimed tubeless in size 56.

Drawn from this bike's published stack and reach. Everything else is representative road geometry, held constant so shapes stay comparable.

Best price found£7,249AtBrand websiteCommissionnone — we earn nothing here

How it scores

Calculated from the published specifications below. See the formula.

Comfort: 47
Speed: 83
Climbing: 77
Versatility: 21
Value: 0

Full specification

✓ Specs checked against the manufacturer

Last checked 4 Sept 2026 against the manufacturer's own page . Caveat: Chainset is an Ultegra 52/36 power meter with an 11-30 cassette. The claimed weight is quoted as a tubeless set-up. Size 56 geometry row. Clearance is Specialized's stated 35mm for the Aethos 2 frame, confirmed by the 'Max Tire Size/Width 35 mm' line in the Aethos 2 user manual Specialized links from this page. That manual also lists 'Front Rack: No', 'Rear Rack: No' and 'Front/Rear Fender: No', so both mounts are recorded as absent. Categorised as endurance on Specialized's own 'Performance Endurance' fit label for this bike, not race. Specialized prints no model year on this page; 2026 reflects the current UK line-up as listed.

Price (RRP): £7,249
Frame: carbon
Groupset: Shimano Ultegra Di2 R8100 2x12 electronic
Shifting: Electronic
Weight: 6.7 kg (claimed, size 56/M)
Brakes: Disc
Stack / reach: 580 / 391 mm (ratio 1.48)
Tyre clearance: 35 mm
Stock tyres: 28 mm
Lowest gear: 36×30 (32 gear inches)
Mudguard mounts: No
Rack mounts: No

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