Velopedia Bicycle Archive

2026 Specialized Roubaix SL8 Expert

Road bicycle from the Velopedia specification archive.

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Original MSRP: $5,999.99
Sizes: 44; 49; 52; 54; 56; 58; 61; 64
Colors: Gloss Fjord Metallic; Dolomite Metallic
Weight: 8.17 kg (18 lb, 0.2 oz)
Geometry: 8 manufacturer sizes
Archive ID: 900001035

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Frameset

Frame Construction	FACT 10R, Rider First Engineered™ (RFE), FreeFoil Shape Library tubes, threaded BB, 12x142mm thru-axle, flat-mount disc
Frame Material	Carbon Fiber
Fork	Future Shock 3.2 w/ Smooth Boot, FACT Carbon 12x100mm, thru-axle, flat-mount disc
Fork Material	Carbon Fiber

Drivetrain

Shifters	Shimano Ultegra Di2 R8170, hydraulic disc
Front Derailleur	Shimano Ultegra Di2 R8150, braze-on
Rear Derailleur	Shimano Ultegra R8150, 12-speed
Crankset	Shimano Ultegra R8100, 50/34t
Bottom Bracket	Shimano Threaded BSA BB
Cassette	Shimano Ultegra CS-R8100, 12-speed, 11-34t
Chain	Shimano XT CN-M8100, 12-speed

Brakes

Brakes	(F) Shimano Ultegra R8100, hydraulic brake / (R) Shimano Ultegra R8100, hydraulic brake

Cockpit & Contact Points

Handlebar	Specialized Hover Expert, Alloy, 125mm Drop, 75mm Reach w/Di2 Hole
Stem	Future Stem, Pro
Saddle	Body Geometry Power Expert
Seatpost	S-Works Pave

Wheels & Tires

Wheels	(F) Roval C38, 21mm internal width carbon rim / (R) Roval C38, 21mm internal width carbon rim, tubeless ready
Front Tire	Mondo TLR Endurance Tire, 700x32, GRIPTON T2/T5
Rear Tire	Mondo TLR Endurance Tire, 700x32, GRIPTON T2/T5

Size-specific frame data

Geometry

8 sizes · 19 measurements

Manufacturer-published geometry normalized for consistent archival comparison. Effective top tube and reach remain separate measurements because they describe different aspects of fit.

Measurement	44	49	52	54	56	58	61	64
Seat tube	365 mm	410 mm	446 mm	465 mm	485 mm	505 mm	545 mm	581 mm
Effective top tube	503 mm	523 mm	534 mm	550 mm	569 mm	584 mm	600 mm	618 mm
Head tube	90 mm	90 mm	105 mm	122 mm	140 mm	168 mm	202 mm	222 mm
Head-tube angle	69.3°	70.8°	71.5°	72.3°	73°	73°	73.5°	73.5°
Seat-tube angle	75°	74°	74°	74°	73.5°	73.5°	73.5°	73°
Chainstay / rear center	418 mm	418 mm	418 mm	420 mm	420 mm	423 mm	423 mm	423 mm
Wheelbase	994 mm	992 mm	998 mm	1005 mm	1012 mm	1031 mm	1042 mm	1054 mm
Bottom-bracket drop	80 mm	80 mm	80 mm	78 mm	78 mm	78 mm	78 mm	78 mm
Bottom-bracket height	269 mm	269 mm	269 mm	270 mm	270 mm	271 mm	271 mm	271 mm
Reach	353 mm	363 mm	370 mm	381 mm	389 mm	397 mm	403 mm	409 mm
Stack	543 mm	549 mm	566 mm	585 mm	605 mm	630 mm	665 mm	685 mm
Standover height	686 mm	719 mm	747 mm	766 mm	787 mm	809 mm	847 mm	865 mm
Fork offset / rake	52 mm	52 mm	52 mm	47 mm	47 mm	47 mm	47 mm	47 mm
Front center	589 mm	587 mm	593 mm	598 mm	604 mm	620 mm	631 mm	634 mm
Trail	76 mm	66 mm	62 mm	61 mm	57 mm	57 mm	54 mm	54 mm
Fork length / axle-to-crown	375 mm	375 mm	375 mm	375 mm	375 mm	375 mm	375 mm	375 mm
Crank length	165 mm	165 mm	170 mm	172.5 mm	172.5 mm	175 mm	175 mm	175 mm
Stem length	70 mm	80 mm	90 mm	100 mm	100 mm	110 mm	110 mm	120 mm
Handlebar width	360 mm	380 mm	400 mm	420 mm	420 mm	440 mm	440 mm	440 mm

Geometry source: Manufacturer HTML geometry table ↗ Measurements can vary by configuration, wheel size, or flip-chip position where noted by the manufacturer.