Specialized S-Works Roubaix 2026 geometry

Size chart for fitting. If this bike already feels right, find others with a similar riding position (size 44). Category: road-endurance.

Size	Stack	Reach	Head tube angle	Seat tube angle	Chainstay	Wheelbase	BB drop
44	531 mm	355 mm	70.0°	75.0°	415 mm	986 mm	80 mm
49	551 mm	363 mm	71.0°	74.5°	415 mm	993 mm	80 mm
52	571 mm	368 mm	71.5°	74.0°	415 mm	999 mm	80 mm
54	591 mm	373 mm	72.0°	73.5°	415 mm	1006 mm	78 mm
56	611 mm	379 mm	72.5°	73.0°	415 mm	1016 mm	78 mm
58	633 mm	385 mm	72.5°	73.0°	418 mm	1029 mm	76 mm
61	656 mm	390 mm	73.0°	72.5°	418 mm	1041 mm	76 mm

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Size guidance

Stack and reach describe the frame's cockpit envelope better than traditional seat-tube sizing. If you know your preferred stack/reach from a bike that already fits, search within a few millimeters first, then check head angle and chainstay for handling feel. See the glossary for stack, reach, and HTA.