Rear tire: 700C×28.
Velopedia Bicycle Archive
2023 Specialized Aethos Expert - SRAM Rival eTAP AXS
Original specifications: 7.64kg (16 lb, 13.5 oz) published weight · geometry for 6 published sizes.
Selling this bike? Get the spec link and selling options
At a glance
- Model year
- 2023
- Category
- Road
- Original MSRP
- $5,500.00
- Sizes
- 49, 52, 54, 56, 58, 61
- Colors
- Gloss Dune White/Metallic Obsidian, Satin Metallic Deep Lake/Deep Lake
- Weight
- 7.64kg (16 lb, 13.5 oz)
- Geometry
- 6 manufacturer sizes
- In this record
- 19 specifications · 8 archived images · original MSRP · geometry
- Archive ID
- 900004109
Original buildCarbon Fiber
Frameset
| Frame Construction | Aethos FACT 10R Carbon, Rider First Engineered™, Threaded BB, 12x142mm thru-axle, flat-mount disc |
|---|---|
| Frame Material | Carbon Fiber |
| Fork | FACT Carbon, 12x100mm thru-axle, flat-mount disc |
| Fork Material | Carbon Fiber |
Drivetrain
| Shifters | SRAM Rival eTap AXS |
|---|---|
| Front Derailleur | SRAM Rival eTAP AXS, braze-on |
| Rear Derailleur | SRAM Rival eTap AXS, 12-speed |
| Crankset | SRAM Rival AXS Power Meter; chainrings: 48/35T |
| Bottom Bracket | SRAM DUB BSA 68 |
| Cassette | SRAM Rival, 12-speed, 10-36t |
| Chain | SRAM Rival 12-speed |
Brakes
| Brakes | (F) SRAM Rival eTAP AXS, hydraulic disc / (R) SRAM Rival eTAP AXS, hydraulic disc |
|---|
Cockpit & Contact Points
| Handlebar | Specialized Expert Shallow Drop, alloy, 125mm drop x 75mm reach |
|---|---|
| Stem | Specialized Pro SL, alloy, 4-bolt |
| Saddle | Body Geometry Power Expert |
| Seatpost | Roval Alpinist Carbon Seatpost |
Wheels & Tires
| Wheels | (F) Roval C38, 21mm internal width carbon rim / (R) Roval C38, 21mm internal width carbon rim |
|---|---|
| Front Tire | S-Works Turbo, 120 TPI, folding bead, BlackBelt protection, 700x28mm |
| Rear Tire | S-Works Turbo, 120 TPI, folding bead, BlackBelt protection, 700x28mm |
Geometry
Frame measurements by size.
Frame diagram
Select an available measurement to locate it on the frame.
All geometry measurements6 sizes · 20 measurements
| Measurement | 49 | 52 | 54 | 56 | 58 | 61 |
|---|---|---|---|---|---|---|
| Seat tube | 431 mm | 462 mm | 481 mm | 504 mm | 532 mm | 567 mm |
| Effective top tube | 508 mm | 531 mm | 540 mm | 562 mm | 577 mm | 595 mm |
| Head tube | 109 mm | 120 mm | 137 mm | 157 mm | 184 mm | 204 mm |
| Head-tube angle | 71.75° | 72.5° | 73° | 73.5° | 73.5° | 74° |
| Seat-tube angle | 75.5° | 74° | 74° | 73.5° | 73.5° | 73° |
| Chainstay / rear center | 410 mm | 410 mm | 410 mm | 410 mm | 410 mm | 410 mm |
| Wheelbase | 973 mm | 975 mm | 978 mm | 991 mm | 1005 mm | 1012 mm |
| Bottom-bracket drop | 74 mm | 74 mm | 72 mm | 72 mm | 72 mm | 72 mm |
| Bottom-bracket height | 266 mm | 266 mm | 268 mm | 268 mm | 268 mm | 268 mm |
| Reach | 375 mm | 380 mm | 384 mm | 395 mm | 402 mm | 408 mm |
| Stack | 514 mm | 527 mm | 544 mm | 565 mm | 591 mm | 612 mm |
| Standover height | 705 mm | 728 mm | 748 mm | 769 mm | 796 mm | 824 mm |
| Fork offset / rake | 47 mm | 47 mm | 44 mm | 44 mm | 44 mm | 44 mm |
| Front center | 574 mm | 577 mm | 579 mm | 591 mm | 606 mm | 613 mm |
| Trail | 63 mm | 58 mm | 58 mm | 55 mm | 55 mm | 52 mm |
| Fork length / axle-to-crown | 369 mm | 369 mm | 369 mm | 369 mm | 369 mm | 369 mm |
| Seatpost length | 300 mm | 300 mm | 360 mm | 360 mm | 360 mm | 360 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 | 400 mm | 420 mm | 420 mm | 440 mm | 440 mm |
Dimensions as recorded.
Gearing
Lower gears help on climbs. Higher gears suit higher speeds.
RPM = pedal turns per minute.
How it works
Ratio = front teeth ÷ rear teeth. Hub gears also include the hub’s internal ratio. A 400% range means the highest ratio is four times the lowest.
Speeds are estimates from tire size and pedal cadence. Actual speeds vary.
Parts & serviceability
Find replacement parts

SRAM Rival XG-1250 12-Speed Cassette Silver, 10-36T
10-36T

Vittoria Zaffiro V Wire Bead Tire Black, 700x28
700x28
Replacement option · verify fit

Specialized SW Mondo 2Bliss Tire Black, 700x28
700x28
Replacement option · verify fit
More parts (6)

SRAM Rival AXS 12-Speed Power Meter Crankset Black, 175mm, 48-35T
175mm, 48-35T

SRAM Rival E1 AXS 12-Speed Rear Derailleur Black, 12-Speed, 36t Max
12-Speed, 36t Max
Based on the original build. Confirm the model, size and fit before ordering; installed parts may differ. 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.
Bike-specific inspection checklist 19 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: 2023 Specialized Aethos Expert - SRAM Rival eTAP AXS · Road · Published sizes: 49, 52, 54, 56, 58, 61
Frame and fork
Inspect the frame and fork →Archived: Frame: Aethos FACT 10R Carbon, Rider First Engineered™, Threaded BB, 12x142mm thru-axle, flat-mount disc · Fork: FACT Carbon, 12x100mm thru-axle, flat-mount disc · Carbon Fiber
Drivetrain
Check drivetrain wear →Archived: Shifters: SRAM Rival eTap AXS · Front derailleur: SRAM Rival eTAP AXS, braze-on · Rear derailleur: SRAM Rival eTap AXS, 12-speed · Crankset: SRAM Rival AXS Power Meter; chainrings: 48/35T · Bottom bracket: SRAM DUB BSA 68 · Cassette: SRAM Rival, 12-speed, 10-36t · Chain: SRAM Rival 12-speed
Brakes
Inspect the brakes →Archived: Brakes: (F) SRAM Rival eTAP AXS, hydraulic disc / (R) SRAM Rival eTAP AXS, hydraulic disc
Wheels and tires
Check wheels and tires →Archived: Wheels: (F) Roval C38, 21mm internal width carbon rim / (R) Roval C38, 21mm internal width carbon rim · Front tire: S-Works Turbo, 120 TPI, folding bead, BlackBelt protection, 700x28mm · Rear tire: S-Works Turbo, 120 TPI, folding bead, BlackBelt protection, 700x28mm
Controls and contact points
Archived: Handlebar: Specialized Expert Shallow Drop, alloy, 125mm drop x 75mm reach · Stem: Specialized Pro SL, alloy, 4-bolt · Seatpost: Roval Alpinist Carbon Seatpost · Saddle: Body Geometry Power Expert
Before and during the test ride
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Gallery8 images
Specifications are presented as a reference. Components may vary by market, size, production run, or later manufacturer revisions.





