2020 Specialized Roubaix Sport vs 2022 Giant Defy Advanced Pro AX
The Giant Defy Advanced Pro AX size closest to your 54 is the ML. Compare the ML instead
What changes on the Giant Defy Advanced Pro AX
Compared with the Specialized Roubaix Sport in 54, the Giant Defy Advanced Pro AX in S places the top of the head tube 39 mm lower and about as far forward, relative to the bottom bracket. Its wheelbase is 7 mm longer, which can contribute to stability at speed.
- Frame stack
- −39 mm
- Lower front end
- Frame reach
- −2 mm
- About the same reach
- Wheelbase
- +7 mm
- Longer: steadier at speed
- Head angle
- −1.0°
- Slacker: calmer steering
- Chainstays
- +5 mm
- Longer: more planted
The two frames
Specialized Roubaix Sport, 54Giant Defy Advanced Pro AX, SDrawn to scale and lined up at the bottom bracket.
Geometry side by side
| Measurement | Specialized Roubaix Sport 54 | Giant Defy Advanced Pro AX S | Difference |
|---|---|---|---|
| Reach | 376mm | 374 | −2 mm |
| Stack | 585mm | 546 | −39 mm |
| Head tube angle | 72.75° | 71.8 | −1.0° |
| Seat tube angle | 74° | 74.0 | ±0.0° |
| Chainstay length | 415mm | 420 | +5 mm |
| Wheelbase | 988mm | 995 | +7 mm |
| BB drop | 76mm | 75 | −1 mm |
| BB height | 266mm | not listed | |
| Standover | 762mm | 760 | −2 mm |
| Seat tube length | 465mm | 445 | −20 mm |
| Fork length | 370mm | not listed | |
| Head tube length | 125mm | 135 | +10 mm |
| Effective top tube | not listed | 530 |
Differences are the Giant Defy Advanced Pro AX minus the Specialized Roubaix Sport. Full charts: 2020 Specialized Roubaix Sport, 2022 Giant Defy Advanced Pro AX.
Where each sits in its class
Specialized Roubaix SportGiant Defy Advanced Pro AX
Each bike is ranked against the other road bikes on Quiver, on frame geometry alone. Not your hand position or ride feel.
What each ships with
The stock build of each bike's first listed trim. Parts that match are dimmed.
| Part | Specialized Roubaix SportSport | Giant Defy Advanced Pro AXAdvanced Pro 2 AX |
|---|---|---|
| Fork | Specialized Future Shock 1.5 | Giant OverDrive 2 |
| Shifter | Shimano 105 R7020 | SRAM Rival |
| Derailleur | Shimano 105, Shimano 105 R7000 GS | SRAM Rival AXS |
| Cassette | Shimano 105 | SRAM Rival |
| Chain | KMC X11 Extra | SRAM Rival D1 |
| Crankset | Praxis Alba | SRAM Rival D1 Wide |
| Wheelset | DT Swiss R470 | Giant SLR 2 36 Carbon Disc |
| Tire | Specialized Turbo Pro | Giant Gavia Fondo 1 |
| Brake | Shimano 105 | SRAM Rival AXS E1 |
| Handlebar | Specialized Hover | Giant Contact SL |
| Seatpost | Specialized S-Works Pave | Giant D-Fuse SL |
| Saddle | Specialized Power Sport | Giant Fleet SL |
| Frame | not listed | Giant Defy |
| Bottom bracket | not listed | SRAM DUB GX |
| Rotor | not listed | SRAM Paceline |
| Stem | not listed | Giant Contact SL |
| Grips | not listed | Lite 3.0 |
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