Velopedia Bicycle Archive
2026 Specialized Aethos 2 Pro
Original manufacturer specifications including 6.71 kg (14 lb, 12.7 oz), tubeless published weight, geometry for 6 published sizes.
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What Velopedia knows
- Model year
- 2026
- Category
- Road
- Original MSRP
- $8,499.99
- Sizes
- 49, 52, 54, 56, 58, 61
- Colors
- Gloss Red Sky / Chrome, Gloss Shadow Silver / Emerald Metallic
- Weight
- 6.71 kg (14 lb, 12.7 oz), tubeless
- Geometry
- 6 manufacturer sizes · Geometry context
- Record coverage
- 19 preserved details · 8 archived images · original MSRP · preserved geometry
- Archive ID
- 900001082
Frameset
| Frame Construction | Aethos 2 FACT 10r Carbon, Rider First Engineered™, Threaded BB, Hidden Cable Routing, 12x142mm thru-axle, flat-mount disc |
|---|---|
| Frame Material | Carbon Fiber |
| Fork | Aethos 2 FACT 10r Carbon, 12x100mm thru-axle, flat-mount disc |
| Fork Material | Carbon Fiber |
Drivetrain
| Shifters | SRAM Force AXS E1 |
|---|---|
| Front Derailleur | SRAM Force AXS E1, braze-on |
| Rear Derailleur | SRAM Force AXS E1, 12-speed |
| Crankset | SRAM Force E1 with Power Meter, 48/35t |
| Bottom Bracket | SRAM DUB BSA 68 |
| Cassette | SRAM Force XG-1270, 12-speed, 10-33t |
| Chain | SRAM Force Flattop E1 |
Brakes
| Brakes | (F) SRAM Force E1, hydraulic disc / (R) SRAM Force E1, hydraulic disc |
|---|
Cockpit & Contact Points
| Handlebar | Roval Alpinist Cockpit II, Integrated Bar/Stem |
|---|---|
| Saddle | Power Pro Mirror, Hollow Ti rails |
| Seatpost | Roval Alpinist Carbon Seatpost |
Wheels & Tires
| Wheels | (F) Roval Alpinist CL II, 21mm internal width carbon rim, 33mm depth, Win Tunnel Engineered, DT for Roval 350 hub, DT Swiss Aerolite spokes, Tubeless Ready / (R) Roval Alpinist CL II, 21mm internal width carbon rim, 33mm depth, Win Tunnel Engineered, DT for Roval 350 hub, DT Swiss Aerolite spokes, Tubeless Ready |
|---|---|
| Front Tire | S-Works Turbo TLR Race Tire, 700x28c |
| Rear Tire | S-Works Turbo TLR Race Tire, 700x28c |
Size-specific frame data
Geometry
Manufacturer-published geometry normalized for consistent archival comparison. Effective top tube and reach remain separate measurements because they describe different aspects of fit.
| Measurement | 49 | 52 | 54 | 56 | 58 | 61 |
|---|---|---|---|---|---|---|
| Seat tube | 450 mm | 470 mm | 490 mm | 510 mm | 535 mm | 570 mm |
| Effective top tube | 508 mm | 526 mm | 544 mm | 557 mm | 572 mm | 584 mm |
| Head tube | 114 mm | 128 mm | 150 mm | 169 mm | 198 mm | 218 mm |
| Head-tube angle | 71.4° | 72.1° | 72.5° | 73° | 73° | 73.5° |
| Seat-tube angle | 75.5° | 74.5° | 74° | 74° | 74° | 74° |
| Chainstay / rear center | 410 mm | 410 mm | 410 mm | 410 mm | 410 mm | 410 mm |
| Wheelbase | 978 mm | 981 mm | 992 mm | 998 mm | 1013 mm | 1020 mm |
| Bottom-bracket drop | 76.5 mm | 76.5 mm | 75 mm | 75 mm | 73.5 mm | 73.5 mm |
| Bottom-bracket height | 265.5 mm | 265.5 mm | 267 mm | 267 mm | 268.5 mm | 268.5 mm |
| Reach | 373 mm | 377 mm | 384 mm | 391 mm | 398 mm | 404 mm |
| Stack | 522 mm | 538 mm | 559 mm | 580 mm | 606 mm | 627 mm |
| Standover height | 719 mm | 737 mm | 759 mm | 779 mm | 805 mm | 834 mm |
| Fork offset / rake | 50 mm | 50 mm | 50 mm | 47 mm | 47 mm | 47 mm |
| Front center | 581 mm | 584 mm | 594 mm | 599 mm | 614 mm | 621 mm |
| Trail | 62 mm | 58 mm | 55 mm | 55 mm | 55 mm | 52 mm |
| Fork length / axle-to-crown | 372 mm | 372 mm | 372 mm | 372 mm | 372 mm | 372 mm |
| Crank length | 165 mm | 170 mm | 172.5 mm | 172.5 mm | 175 mm | 175 mm |
| Stem length | 80 mm | 90 mm | 100 mm | 100 mm | 110 mm | 110 mm |
| Handlebar width | 380 mm | 380 mm | 400 mm | 400 mm | 420 mm | 420 mm |
Geometry source: Manufacturer HTML geometry table ↗ Measurements can vary by configuration, wheel size, or flip-chip position where noted by the manufacturer.
Geometry tools
Analyze a published size
49 geometry
Archive context: The seat angle of 75.5° sits toward the steeper end. Its bottom-bracket drop of 76.5 mm sits toward the deeper-drop end. Its reach of 373 mm sits somewhat shorter than typical.
Compared with 88 distinct road geometries in the Small-equivalent size cohort from model years 2024–2027 in the Velopedia archive.Want to go deeper?Open this exact published size and configuration in the Velopedia Geometry Analyzer, then complete any measurements the manufacturer did not provide.
Analyze 49 geometry 52 geometry
Archive context: Its wheelbase of 981 mm sits toward the shorter end. The seat angle of 74.5° sits toward the steeper end. Its bottom-bracket drop of 76.5 mm sits toward the deeper-drop end.
Compared with 88 distinct road geometries in the Medium-equivalent size cohort from model years 2024–2027 in the Velopedia archive.Want to go deeper?Open this exact published size and configuration in the Velopedia Geometry Analyzer, then complete any measurements the manufacturer did not provide.
Analyze 52 geometry 54 geometry
Archive context: Its trail of 55 mm sits toward the lower-trail end. Its bottom-bracket drop of 75 mm sits somewhat deeper than typical. The chainstay of 410 mm sits somewhat shorter than typical.
Compared with 88 distinct road geometries in the Medium-equivalent size cohort from model years 2024–2027 in the Velopedia archive.Want to go deeper?Open this exact published size and configuration in the Velopedia Geometry Analyzer, then complete any measurements the manufacturer did not provide.
Analyze 54 geometry 56 geometry
Archive context: Its trail of 55 mm sits toward the lower-trail end. Its bottom-bracket drop of 75 mm sits toward the deeper-drop end. The seat angle of 74° sits toward the steeper end.
Compared with 77 distinct road geometries in the Large-equivalent size cohort from model years 2024–2027 in the Velopedia archive.Want to go deeper?Open this exact published size and configuration in the Velopedia Geometry Analyzer, then complete any measurements the manufacturer did not provide.
Analyze 56 geometry 58 geometry
Archive context: Its trail of 55 mm sits toward the lower-trail end. The seat angle of 74° sits toward the steeper end. Its bottom-bracket drop of 73.5 mm sits somewhat deeper than typical.
Compared with 63 distinct road geometries in the XL-equivalent size cohort from model years 2024–2027 in the Velopedia archive.Want to go deeper?Open this exact published size and configuration in the Velopedia Geometry Analyzer, then complete any measurements the manufacturer did not provide.
Analyze 58 geometry 61 geometry
Archive context: The seat angle of 74° sits toward the steeper end. Its trail of 52 mm sits toward the lower-trail end. Its bottom-bracket drop of 73.5 mm sits somewhat deeper than typical.
Compared with 39 distinct road geometries in the XXL-equivalent size cohort from model years 2024–2027 in the Velopedia archive.Want to go deeper?Open this exact published size and configuration in the Velopedia Geometry Analyzer, then complete any measurements the manufacturer did not provide.
Analyze 61 geometry Parts & serviceability
Find replacement parts
SRAM Force Flattop E1
Interpreted as SRAM Force · 12-speed Named component · published drivetrain speed — verify exact version
SRAM Force XG-1270, 12-speed, 10-33t
Interpreted as SRAM Force · 12-speed Exact archived model
SRAM DUB BSA 68
Named archived component — verify dimensions
More qualified parts (5)
SRAM Force E1 with Power Meter, 48/35t
Component family — verify exact version
SRAM Force AXS E1, braze-on
Interpreted as SRAM Force · 12-speed · electronic Component family — verify exact version
SRAM Force AXS E1, 12-speed
Interpreted as SRAM Force · 12-speed · electronic Component family — verify exact version
SRAM Force AXS E1
Interpreted as SRAM Force · 12-speed · electronic Component family — verify exact version
Roval Alpinist Carbon Seatpost
Named archived component — verify dimensions
Searches use the archived manufacturer specification, not the components currently installed on a particular bicycle. Confirm the exact model, size and fit before ordering. As an Amazon Associate I earn from qualifying purchases. Velopedia may also earn from qualifying eBay purchases. Velopedia may also earn from qualifying retailer purchases. Commercial relationships do not influence Archive specifications or analysis.
Used-bike inspection
If you’re buying this bike used
Before any test ride: both brakes should stop the bike firmly and release cleanly; both wheels should run true and be securely attached; tires should have no casing damage; and the headset, handlebar, stem, cranks and pedals should have no looseness or play.
Follow the full used-bike inspection order →- FrameInspect the frame in bright light, especially around the head tube, bottom bracket, chainstays and clamped areas. Look for cracks, ripples, crushed sections or signs of a previous impact.Inspect the frame and fork →
- BrakesBoth levers should feel firm and return cleanly. Check for fluid around the levers and calipers, inspect pad thickness and contamination, and look for worn or bent rotors.Inspect the brakes →
- DrivetrainConfirm every shift-system battery charges, every shift control works and the derailleur moves cleanly across the cassette. Make sure the matching shift-system charger is included, then measure chain wear and inspect the cassette teeth.Check drivetrain wear →
- Wheels & tiresSpin both wheels and watch the rims for side-to-side or vertical movement. Check for dents, cracks, loose or uneven spokes and hub play, then inspect both tire casings for cuts, cracking or exposed threads. If it is set up tubeless, confirm both tires hold pressure and ask when the sealant was last refreshed.Check wheels and tires →
- Bottom bracketTurn the cranks slowly, feel for rough bearings and check for side-to-side play. Creaking under load deserves investigation but does not identify the source by itself.Inspect the bottom bracket and shell →
Bike-specific inspection checklist 20 checks based on 5 archived component groups Open checklistClose checklist
This checklist uses the archived equipment for this bike. It cannot confirm the condition, service history or later component changes of the example in front of you.
Identity and fit
Follow the full used-bike inspection order →Archived: 2026 Specialized Aethos 2 Pro · Road · Published sizes: 49, 52, 54, 56, 58, 61
Frame and fork
Inspect the frame and fork →Archived: Frame: Aethos 2 FACT 10r Carbon, Rider First Engineered™, Threaded BB, Hidden Cable Routing, 12x142mm thru-axle, flat-mount disc · Fork: Aethos 2 FACT 10r Carbon, 12x100mm thru-axle, flat-mount disc · Carbon Fiber
Drivetrain
Check drivetrain wear →Archived: Shifters: SRAM Force AXS E1 · Front derailleur: SRAM Force AXS E1, braze-on · Rear derailleur: SRAM Force AXS E1, 12-speed · Crankset: SRAM Force E1 with Power Meter, 48/35t · Bottom bracket: SRAM DUB BSA 68 · Cassette: SRAM Force XG-1270, 12-speed, 10-33t · Chain: SRAM Force Flattop E1
Brakes
Inspect the brakes →Archived: Brakes: (F) SRAM Force E1, hydraulic disc / (R) SRAM Force E1, hydraulic disc
Wheels and tires
Check wheels and tires →Archived: Front tire: S-Works Turbo TLR Race Tire, 700x28c · Rear tire: S-Works Turbo TLR Race Tire, 700x28c
Controls and contact points
Archived: Handlebar: Roval Alpinist Cockpit II, Integrated Bar/Stem · Seatpost: Roval Alpinist Carbon Seatpost · Saddle: Power Pro Mirror, Hollow Ti rails
Before and during the test ride
Follow the full used-bike inspection order →Build relationships are limited to the archived manufacturer specifications. Confirm exact fit and standards before ordering parts or performing service.
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Specifications are presented as a reference. Components may vary by market, size, production run, or later manufacturer revisions.