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2018 Specialized Roubaix 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
49, 52, 54, 56, 58, 61
Colors
Gloss Carbon/Chameleon Purple/Metallic White Silver, Gloss Flo Red/Red Flake/Black Reflective Clean
Geometry
6 manufacturer sizes
In this record
20 specifications · 4 archived images · original MSRP · geometry
Archive ID
900003288
Model history 3 other years
Campaign
Original buildCarbon Fiber

Manufacturer catalog

Published sizes and colors

6 sizes · 2 colors

Manufacturer-published sizes and colors; availability and exact size/color pairings may vary by market or production run.

Published sizes

495254565861

Published colors

Gloss Carbon/Chameleon Purple/Metallic White SilverGloss Flo Red/Red Flake/Black Reflective Clean

Frameset

Frame ConstructionSpecialized FACT 10r carbon, Endurance Geometry, Rider-First Engineered™, 12x142mm thru-axle, Future Shock suspension, 20mm of travel, flat disc mounts
Frame MaterialCarbon Fiber
ForkSpecialized FACT carbon, 12x100mm thru-axle
Fork MaterialCarbon Fiber

Drivetrain

ShiftersShimano Ultegra 8020, hydraulic disc
Front DerailleurShimano Ultegra 8000, braze-on
Rear DerailleurShimano Ultegra 8000, long cage, 11-speed
CranksetShimano Ultegra R8000; chainrings: 50/34T
Bottom BracketShimano Ultegra
CassetteShimano 11-speed Ultegra 8000, 11-32t
ChainShimano Ultegra, 11-speed
PedalsNylon, 105x78x28mm, loose balls w/ reflectors

Brakes

Brakes(F) Shimano Ultegra 8020, hydraulic disc / (R) Shimano Ultegra 8020, hydraulic disc

Cockpit & Contact Points

HandlebarSpecialized Expert Hover, alloy, 75x125mm
StemSpecialized Pro SL, alloy, 4-bolt
SaddleBody Geometry Phenom Expert, Adaptive Edge design, hollow titanium rails, carbon fiber base, 143mm
SeatpostSpecialized 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 TireTurbo Pro, 60 TPI, folding bead, BlackBelt protection, 700x28mm
Rear TireTurbo Pro, 60 TPI, folding bead, BlackBelt protection, 700x28mm

Geometry

6 sizes · 17 measurements

Frame measurements by size.

All geometry measurements6 sizes · 17 measurements
Measurement495254565861
Effective top tube527 mm534.9 mm545 mm561.8 mm576.3 mm588.5 mm
Head tube90 mm110 mm125 mm150 mm185 mm205 mm
Head-tube angle72°72.25°72.75°73.5°73.5°74°
Seat-tube angle74°74°74°73.5°73.5°73.5°
Chainstay / rear center413 mm413 mm415 mm415 mm418 mm418 mm
Wheelbase981 mm987 mm987 mm993 mm1011 mm1018 mm
Bottom-bracket drop77.5 mm77.5 mm76 mm76 mm74.5 mm74.5 mm
Reach369 mm371 mm375 mm381 mm386 mm392 mm
Stack549 mm569 mm585 mm611 mm644 mm665 mm
Standover height715.5 mm743 mm762 mm785 mm813 mm844.3 mm
Fork offset / rake50 mm50 mm44 mm44 mm44 mm44 mm
Front center580 mm586 mm584 mm590 mm605 mm612 mm
Trail58.5 mm57 mm61 mm55 mm55 mm52 mm
Seatpost length350 mm350 mm400 mm400 mm450 mm450 mm
Crank length170 mm170 mm172.5 mm172.5 mm175 mm175 mm
Stem length80 mm90 mm100 mm100 mm110 mm110 mm
Handlebar width400 mm420 mm420 mm420 mm440 mm440 mm

Dimensions as recorded.

Gearing

Lower gears help on climbs. Higher gears suit higher speeds.

RPM

RPM = pedal turns per minute.

All published sizes50/34T · 11–32T · 11-speed
Lowest1.06:1 Highest4.55:1 Total range428%
Estimated speed At 90 RPM Lowest gear7.6 mph Highest gear32.5 mph

Rear tire: 700C×28.

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.

Try other gearing

Parts & serviceability

Find replacement parts

Original specifications
Chain · Original
Shimano Ultegra, 11-speed Search: Shimano Ultegra, 11-speed chain
Retailer offers · Affiliate links
Cassette · Original
Shimano 11-speed Ultegra 8000, 11-32t Search: Shimano 11-speed Ultegra 8000, 11-32t cassette
Front tire · Original
Turbo Pro, 60 TPI, folding bead, BlackBelt protection, 700x28mm Replacement search: 700cx28 bicycle tire Before ordering: Check rim type and tire clearance.
More parts (6)
Bottom bracket · Original
Shimano Ultegra
Crankset · Original
Shimano Ultegra R8000; chainrings: 50/34T
Front derailleur · Original
Shimano Ultegra 8000, braze-on Search: Shimano Ultegra 11-speed front derailleur Before ordering: Confirm whether the drivetrain is mechanical or electronic before ordering.
Rear derailleur · Original
Shimano Ultegra 8000, long cage, 11-speed Search: Shimano Ultegra 8000, long cage, 11-speed rear derailleur Before ordering: Confirm whether the drivetrain is mechanical or electronic before ordering.
Shifters · Original
Shimano Ultegra 8020, hydraulic disc Search: Shimano Ultegra 11-speed shifter Before ordering: Confirm whether the drivetrain is mechanical or electronic before ordering.
Handlebar · Original
Specialized Expert Hover, alloy, 75x125mm

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
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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.

Archived: 2018 Specialized Roubaix Expert · Road · Published sizes: 49, 52, 54, 56, 58, 61

Archived: Frame: Specialized FACT 10r carbon, Endurance Geometry, Rider-First Engineered™, 12x142mm thru-axle, Future Shock suspension, 20mm of travel, flat disc mounts · Fork: Specialized FACT carbon, 12x100mm thru-axle · Carbon Fiber

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

Archived: Brakes: (F) Shimano Ultegra 8020, hydraulic disc / (R) Shimano Ultegra 8020, hydraulic disc

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: Body Geometry Phenom Expert, Adaptive Edge design, hollow titanium rails, carbon fiber base, 143mm · Pedals: Nylon, 105x78x28mm, loose balls w/ reflectors

Before and during the test ride

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Gallery4 images

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Campaign

Specifications are presented as a reference. Components may vary by market, size, production run, or later manufacturer revisions.

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