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Specialized Aethos 2 Pro - Shimano Ultegra Di2

Specialized

Aethos 2 Pro - Shimano Ultegra Di2

2026

$8,499.99

Giant Defy Advanced Pro 0-AXS

Giant

Defy Advanced Pro 0-AXS

2027

$7,700.00

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Overview

CategoryRoadRoad
Model year20262027
Wheel size700c (49, 52, 54, 56, 58, 61)700c (XS, S, M, ML, L, XL)

Components

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FrameAethos 2 FACT 10r Carbon, Rider First Engineered™, Threaded BB, Hidden Cable Routing, 12x142mm thru-axle, flat-mount discAdvanced-grade Composite, 12x142mm thru-axle, disc
Crank length49: 165mm 52: 170mm 54: 172.5mm 56: 172.5mm 58: 175mm 61: 175mmXS: 165 mm S: 165 mm M: 170 mm ML: 170 mm L: 172.5 mm XL: 172.5 mm
Sizes—XS, S, M, M/L, L, XL
ForkAethos 2 FACT 10r Carbon, 12x100mm thru-axle, flat-mount discAdvanced SL-grade Composite, full-composite OverDrive Aero steerer, 12x100mm thru-axle, disc
Handlebar width49: 380mm 52: 380mm 54: 400mm 56: 400mm 58: 420mm 61: 420mmXS: 404 mm S: 404 mm M: 424 mm ML: 424 mm L: 444 mm XL: 444 mm
Colours—Luminous Lagoon
Front brakeShimano Ultegra BR-R8170, hydraulic disc—
Stem length49: 80mm 52: 90mm 54: 100mm 56: 100mm 58: 110mm 61: 110mmXS: 80 mm S: 90 mm M: 100 mm ML: 100 mm L: 110 mm XL: 110 mm
Rear brakeShimano Ultegra BR-R8170, hydraulic disc—
Saddle width49: 155mm 52: 155mm 54: 143mm 56: 143mm 58: 143mm 61: 143mm—
Shift leversShimano Ultegra Di2 R8170, hydraulic disc—
Seatpost length49: 300mm 52: 300mm 54: 360mm 56: 360mm 58: 360mm 61: 360mm—
Handlebar—Giant Contact SLR D-Fuse XS:404/380mm, S:404/380mm, M:424/400mm, M/L:424/400mm, L:444/420mm, XL:444/420mm
Front derailleurShimano Ultegra Di2 R8150, braze-onSram Force AXS E1
Grips—Stratus Lite 3.0
Rear derailleurShimano Ultegra Di2 R8150, 12-speedSram Force AXS E1
Stem—Giant Contact SL AeroLight XS:80mm, S:90mm, M:100mm, M/L:100mm, L:110mm, XL:110mm
CassetteShimano Ultegra, 12-speed, 11-30tSram Force E1, 12-speed, 10-36 XG-1270-E1
SeatpostRoval Alpinist Carbon SeatpostGiant D-Fuse SLR, composite, -5/+15mm offset
ChainShimano XT CN-M8100, 12-speedSram Force E1, 12-speed
SaddlePower Pro Mirror, Hollow Ti railsGiant Fleet SL
CranksetShimano Ultegra R8100 with 4iiii Precision 3+ single-sided Power Meter, 52/36tSram Force E1 DUB,33/46 with power meter XS: 165mm, S: 165mm, M: 170mm, M/L: 170mm, L: 172.5mm, XL: 172.5mm
Shifters—Sram Force AXS E1
Bottom bracketShimano Threaded BSA BB—
Front tyreS-Works Turbo TLR Race Tire, 700x28c—
Front wheelRoval Alpinist CL II, 21mm internal width carbon rim, 33mm depth, Win Tunnel Engineered, DT for Roval 350 hub, DT Swiss Aerolite spokes, Tubeless Ready—
Brakes—SRAM Force AXS E1 hydraulic, SRAM CenterLine X rotors [F]160mm, [R]160mm
Rear tyreS-Works Turbo TLR Race Tire, 700x28c—
Brake levers—SRAM Force AXS E1 hydraulic
Rear wheelRoval Alpinist CL II, 21mm internal width carbon rim, 33mm depth, Win Tunnel Engineered, DT for Roval 350 hub, DT Swiss Aerolite spokes, Tubeless Ready—
Inner tubes700x25-35, 50mm Presta Valve, TPU—
HandlebarRoval Alpinist Cockpit II, Integrated Bar/Stem—
Bar tapeSupacaz Super Sticky Kush—
Rims—Giant SLR 0 40 Carbon Disc WheelSystem
Hubs—[F] Giant Low Friction Hub, CenterLock, 12mm thru-axle [R] Giant Low Friction Hub, 40T ratchet driver, CenterLock, 12mm thru-axle
Spokes—Aero Carbon
Seatpost clampSpecialized Alloy, 30mm—
Tyres—CADEX Classics, tubeless, 700x32c (33.5mm), folding
Product ID279155—
Extras—computer mount, fender mount, water bottle cages, tubeless prepared
Weight6.73 kg (14 lb, 13.4 oz), tubelessThe most accurate way to determine any bike’s weight is to have your local dealer weigh it for you. Many brands strive to list the lowest possible weight, but in reality weight can vary based on size, finish, hardware and accessories. All our bikes are designed for best-in-class weight and ride quality.
Maximum tyre clearance—40mm
Size used for weighing56—

Geometry

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GeometrySpecialized Aethos 2 Pro - Shimano Ultegra Di2Giant Defy Advanced Pro 0-AXS