Rear tire: 700C×28.
Velopedia Bicycle Archive
2018 Specialized Ruby Expert
Original specifications: geometry for 6 published sizes.
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At a glance
- Model year
- 2018
- Category
- Road
- Original MSRP
- $3,600.00
- Sizes
- 44, 48, 51, 54, 56
- Colors
- Gloss Satin Tarmac Black/Cali Fade/Black
- Geometry
- 6 manufacturer sizes
- In this record
- 20 specifications · 2 archived images · original MSRP · geometry
- Archive ID
- 900003301
Model history 5 other years
Original buildCarbon Fiber
Frameset
| Frame Construction | Specialized FACT 10r carbon, Women's Endurance Geometry, Rider-First Engineered™, 12x142mm thru-axle, Future Shock suspension, 20mm of travel, flat-disc mounts |
|---|---|
| Frame Material | Carbon Fiber |
| Fork | Specialized FACT full-carbon, flat-mount disc, 12x100mm thru-axle |
| Fork Material | Carbon Fiber |
Drivetrain
| Shifters | Shimano Ultegra 8020, hydraulic disc |
|---|---|
| Front Derailleur | Shimano Ultegra 8000, braze-on |
| Rear Derailleur | Shimano Ultegra 8000, long cage, 11-speed |
| Crankset | Shimano Ultegra R8000; chainrings: 50/34T |
| Bottom Bracket | Shimano Ultegra |
| Cassette | Shimano 11-speed Ultegra 8000, 11-32t |
| Chain | Shimano Ultegra, 11-speed |
| Pedals | Nylon, 105x78x28mm, loose balls w/ reflectors |
Brakes
| Brakes | (F) Shimano Ultegra 8020, hydraulic disc / (R) Shimano Ultegra 8020, hydraulic disc |
|---|
Cockpit & Contact Points
| Handlebar | Specialized Expert Hover, alloy, 75x125mm |
|---|---|
| Stem | Specialized Pro SL, alloy, 4-bolt |
| Saddle | Ruby Expert, 155mm, hollow titanium rails, Adaptive Edge, gel padding |
| Seatpost | Specialized CG-R, FACT carbon, single-bolt, 27.2mm |
Wheels & Tires
| Wheels | (F) Roval SLX 24 Disc, DT Swiss 350 hubs, DT Swiss Competition spokes, 24h / (R) Roval SLX 24 Disc, DT Swiss 350 hubs, DT Swiss Competition spokes, 24h |
|---|---|
| Front Tire | Turbo Pro, 60 TPI, folding bead, BlackBelt protection, 700x28mm |
| Rear Tire | Turbo Pro, 60 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 · 17 measurements
| Measurement | 44 | 48 | 51 | 54 | 56 | 58 |
|---|---|---|---|---|---|---|
| Effective top tube | 510 mm | 517 mm | 534 mm | 544 mm | 550 mm | 581 mm |
| Head tube | 90 mm | 100 mm | 120 mm | 140 mm | 160 mm | 190 mm |
| Head-tube angle | 70° | 71° | 71.5° | 72° | 72.5° | 72.5° |
| Seat-tube angle | 74.5° | 74.5° | 74° | 74° | 74° | 73.5° |
| Chainstay / rear center | 413 mm | 413 mm | 413 mm | 413 mm | 415 mm | 415 mm |
| Wheelbase | 981 mm | 981 mm | 990 mm | 997 mm | 1010 mm | 1028 mm |
| Bottom-bracket drop | 77.5 mm | 77.5 mm | 77.5 mm | 77.5 mm | 76 mm | 76 mm |
| Reach | 353 mm | 358 mm | 365 mm | 370 mm | 370 mm | 374 mm |
| Stack | 541 mm | 554 mm | 575 mm | 596 mm | 616 mm | 644 mm |
| Standover height | 679 mm | 700.7 mm | 727.9 mm | 756.9 mm | 778 mm | 802 mm |
| Fork offset / rake | 50 mm | 50 mm | 50 mm | 50 mm | 50 mm | 50 mm |
| Front center | 580 mm | 580 mm | 589 mm | 596 mm | 607 mm | 625 mm |
| Trail | 72 mm | 66 mm | 62 mm | 59 mm | 56 mm | 56 mm |
| Seatpost length | 350 mm | 350 mm | 350 mm | 400 mm | 400 mm | 450 mm |
| Crank length | 165 mm | 165 mm | 170 mm | 170 mm | 172.5 mm | 172.5 mm |
| Stem length | 70 mm | 80 mm | 90 mm | 90 mm | 100 mm | 100 mm |
| Handlebar width | 360 mm | 380 mm | 400 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

Shimano SLX/105 CN-HG601 11-Speed Chain Grey, 126 Links
126 Links
Replacement option · verify fit
More parts (6)
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: 2018 Specialized Ruby Expert · Road · Published sizes: 44, 48, 51, 54, 56
Frame and fork
Inspect the frame and fork →Archived: Frame: Specialized FACT 10r carbon, Women's Endurance Geometry, Rider-First Engineered™, 12x142mm thru-axle, Future Shock suspension, 20mm of travel, flat-disc mounts · Fork: Specialized FACT full-carbon, flat-mount disc, 12x100mm thru-axle · Carbon Fiber
Drivetrain
Check drivetrain wear →Archived: Shifters: Shimano Ultegra 8020, hydraulic disc · Front derailleur: Shimano Ultegra 8000, braze-on · Rear derailleur: Shimano Ultegra 8000, long cage, 11-speed · Crankset: Shimano Ultegra R8000; chainrings: 50/34T · Bottom bracket: Shimano Ultegra · Cassette: Shimano 11-speed Ultegra 8000, 11-32t · Chain: Shimano Ultegra, 11-speed
Brakes
Inspect the brakes →Archived: Brakes: (F) Shimano Ultegra 8020, hydraulic disc / (R) Shimano Ultegra 8020, hydraulic disc
Wheels and tires
Check wheels and tires →Archived: Wheels: (F) Roval SLX 24 Disc, DT Swiss 350 hubs, DT Swiss Competition spokes, 24h / (R) Roval SLX 24 Disc, DT Swiss 350 hubs, DT Swiss Competition spokes, 24h · Front tire: Turbo Pro, 60 TPI, folding bead, BlackBelt protection, 700x28mm · Rear tire: Turbo Pro, 60 TPI, folding bead, BlackBelt protection, 700x28mm
Controls and contact points
Archived: Handlebar: Specialized Expert Hover, alloy, 75x125mm · Stem: Specialized Pro SL, alloy, 4-bolt · Seatpost: Specialized CG-R, FACT carbon, single-bolt, 27.2mm · Saddle: Ruby Expert, 155mm, hollow titanium rails, Adaptive Edge, gel padding · Pedals: Nylon, 105x78x28mm, loose balls w/ reflectors
Before and during the test ride
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Gallery2 images
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Specifications are presented as a reference. Components may vary by market, size, production run, or later manufacturer revisions.




