Rear tire: 700C×23.
Velopedia Bicycle Archive
2017 Specialized Amira Expert UDi2
Original specifications: geometry for 5 published sizes.
Selling this bike? Get the spec link and selling options
At a glance
- Model year
- 2017
- Category
- Road
- Sizes
- 44, 48, 51, 54, 56
- Colors
- Gloss Boels-dolmans
- Geometry
- 5 manufacturer sizes
- In this record
- 19 specifications · archived image · geometry
- Archive ID
- 900003262
Original buildCarbon Fiber
Frameset
| Frame Construction | FACT 10r carbon, women's carbon layup & competitive geometry, tapered head tube, OSBB, internal routing, 130mm spacing |
|---|---|
| Frame Material | Carbon Fiber |
| Fork | FACT carbon, full monocoque |
| Fork Material | Carbon Fiber |
Drivetrain
| Shifters | Shimano Ultegra Di2, 6870, 11-speed |
|---|---|
| Front Derailleur | Shimano Ultegra Di2 6870, 11-speed, braze-on |
| Rear Derailleur | Shimano Ultegra Di2, 6870, 11-speed |
| Crankset | FSA SL-K Light; chainrings: 52/36T |
| Bottom Bracket | Enduro BB30 |
| Cassette | Shimano Ultegra 6800, 11-speed, 11-28t |
| Chain | Shimano HG70, 11-speed |
Brakes
| Brakes | (F) Shimano Ultegra / (R) Shimano Ultegra |
|---|
Cockpit & Contact Points
| Handlebar | Specialized Women's Expert Shallow Drop, alloy, 123mm drop, 75mm reach |
|---|---|
| Stem | Specialized Pro SL, alloy, 4-bolt |
| Saddle | Body Geometry Oura Expert Gel, hollow titanium rails, 155mm |
| Seatpost | S-Works FACT carbon, 20mm offset |
Wheels & Tires
| Wheels | (F) DT Swiss R460 Pro, QR / (R) DT Swiss R460 Pro, QR |
|---|---|
| Front Tire | Turbo Pro, 700x23mm, 127TPI, folding bead, BlackBelt protection |
| Rear Tire | Turbo Pro, 700x23mm, 127TPI, folding bead, BlackBelt protection |
Geometry
Frame measurements by size.
Frame diagram
Select an available measurement to locate it on the frame.
All geometry measurements5 sizes · 19 measurements
| Measurement | 44 | 48 | 51 | 54 | 56 |
|---|---|---|---|---|---|
| Seat tube | 390 mm | 420 mm | 460 mm | 490 mm | 510 mm |
| Effective top tube | 491 mm | 502 mm | 515 mm | 535 mm | 547 mm |
| Head tube | 105 mm | 115 mm | 125 mm | 145 mm | 165 mm |
| Head-tube angle | 70.5° | 71.25° | 72° | 72° | 72° |
| Seat-tube angle | 76° | 76° | 76° | 74° | 74° |
| Chainstay / rear center | 405 mm | 405 mm | 405 mm | 405 mm | 408 mm |
| Wheelbase | 970 mm | 974 mm | 976 mm | 982 mm | 994 mm |
| Bottom-bracket drop | 73 mm | 73 mm | 73 mm | 73 mm | 72 mm |
| Bottom-bracket height | 269 mm | 269 mm | 269 mm | 269 mm | 270 mm |
| Reach | 365 mm | 371 mm | 378 mm | 378 mm | 380 mm |
| Stack | 504 mm | 516 mm | 529 mm | 548 mm | 565 mm |
| Fork offset / rake | 51 mm | 51 mm | 49 mm | 49 mm | 49 mm |
| Front center | 576 mm | 580 mm | 582 mm | 588 mm | 596 mm |
| Trail | 67 mm | 62 mm | 59 mm | 59 mm | 59 mm |
| Fork length / axle-to-crown | 369 mm | 369 mm | 369 mm | 369 mm | 369 mm |
| Seatpost length | 350 mm | 350 mm | 400 mm | 400 mm | 400 mm |
| Crank length | 165 mm | 165 mm | 170 mm | 170 mm | 172.5 mm |
| Stem length | 75 mm | 75 mm | 90 mm | 100 mm | 100 mm |
| Handlebar width | 360 mm | 380 mm | 400 mm | 400 mm | 420 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
More parts (6)

FSA SL-K Light 2x Crankset 11-Speed, 175mm, 52/36t
175mm, 52/36t

Shimano Ultegra Di2 FD-R8050 Front Derailleur Gray, Braze-On
Braze-On
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: 2017 Specialized Amira Expert UDi2 · Road · Published sizes: 44, 48, 51, 54, 56
Frame and fork
Inspect the frame and fork →Archived: Frame: FACT 10r carbon, women's carbon layup & competitive geometry, tapered head tube, OSBB, internal routing, 130mm spacing · Fork: FACT carbon, full monocoque · Carbon Fiber
Drivetrain
Check drivetrain wear →Archived: Shifters: Shimano Ultegra Di2, 6870, 11-speed · Front derailleur: Shimano Ultegra Di2 6870, 11-speed, braze-on · Rear derailleur: Shimano Ultegra Di2, 6870, 11-speed · Crankset: FSA SL-K Light; chainrings: 52/36T · Bottom bracket: Enduro BB30 · Cassette: Shimano Ultegra 6800, 11-speed, 11-28t · Chain: Shimano HG70, 11-speed
Brakes
Inspect the brakes →Archived: Brakes: (F) Shimano Ultegra / (R) Shimano Ultegra
Wheels and tires
Check wheels and tires →Archived: Wheels: (F) DT Swiss R460 Pro, QR / (R) DT Swiss R460 Pro, QR · Front tire: Turbo Pro, 700x23mm, 127TPI, folding bead, BlackBelt protection · Rear tire: Turbo Pro, 700x23mm, 127TPI, folding bead, BlackBelt protection
Controls and contact points
Archived: Handlebar: Specialized Women's Expert Shallow Drop, alloy, 123mm drop, 75mm reach · Stem: Specialized Pro SL, alloy, 4-bolt · Seatpost: S-Works FACT carbon, 20mm offset · Saddle: Body Geometry Oura Expert Gel, hollow titanium rails, 155mm
Before and during the test ride
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Specifications are presented as a reference. Components may vary by market, size, production run, or later manufacturer revisions.





