2025 Pinarello X5 Shimano vs 2023 Specialized Roubaix SL8 Comp
The 58 is the Specialized Roubaix SL8 Comp size closest to your 590 Pinarello X5 Shimano. We match frame stack and reach. This is a geometry comparison, not a fit recommendation; stem, spacers, handlebars and saddle setup also affect your riding position.
What changes on the Specialized Roubaix SL8 Comp
Compared with the Pinarello X5 Shimano in 590, the Specialized Roubaix SL8 Comp in 58 places the top of the head tube 10 mm lower and 9 mm further forward, relative to the bottom bracket.
- Frame stack
- −10 mm
- Lower front end
- Frame reach
- +9 mm
- Longer frame reach
- Wheelbase
- n/a
- One of the bikes has no number for this
- Head angle
- +0.5°
- Steeper: sharper steering
- Chainstays
- +1 mm
- About the same
The two frames
We can't draw these frames yet. The Pinarello X5 Shimano numbers we have for size 590 are missing the wheelbase. The numbers below still compare.
Geometry side by side
| Measurement | Pinarello X5 Shimano 590 | Specialized Roubaix SL8 Comp 58 | Difference |
|---|---|---|---|
| Reach | 388.1 | 397 | +9 mm |
| Stack | 640.4 | 630 | −10 mm |
| Head tube angle | 72.5 | 73 | +0.5° |
| Seat tube angle | 72.5 | 73.5 | +1.0° |
| Effective top tube | 590 | 584 | −6 mm |
| Chainstay length | 422 | 423 | +1 mm |
| BB drop | 67 | not listed | |
| Seat tube length | 590 | 505 | −85 mm |
| Fork length | 375 | not listed | |
| Head tube length | 230 | 168 | −62 mm |
| Wheelbase | not listed | 1031 | |
| BB height | not listed | 271 | |
| Standover | not listed | 809 |
Differences are the Specialized Roubaix SL8 Comp minus the Pinarello X5 Shimano. Full charts: 2025 Pinarello X5 Shimano, 2023 Specialized Roubaix SL8 Comp.
Where each sits in its class
Pinarello X5 ShimanoSpecialized Roubaix SL8 Comp
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 | Pinarello X5 ShimanoShimano 105 Di2 | Specialized Roubaix SL8 CompSL8 Comp |
|---|---|---|
| Frame | Pinarello X5 | Specialized FACT 10R |
| Shifter | Shimano 105 Di2 | Shimano 105 |
| Derailleur | Shimano 105 Di2 | Shimano 105 |
| Cassette | Shimano 105 | Shimano 105 |
| Chain | Shimano 105 | Shimano 105 |
| Crankset | Shimano 105 Di2 | Shimano 105 |
| Bottom bracket | Shimano 105 | Shimano 105 |
| Wheelset | Fulcrum Racing 800 DB | DT Swiss G540 |
| Tire | Pirelli P7 Sport | S Works Mondo, S Works Mondo 2BR |
| Brake | Shimano 105 | Shimano 105 |
| Rotor | Shimano 105 | Shimano 105 |
| Handlebar | MOST Jaguar XA TiCR | Specialized Hover |
| Stem | Tiger Aero Alu TiCR | Specialized Future Stem |
| Bar tape | MOST Ultragrip Evo | Supacaz Super Sticky Kush |
| Fork | not listed | Specialized Future Shock 3.2 |
| Chainring | not listed | Shimano 105 |
| Seatpost | not listed | Specialized S-Works Pavé |
| Saddle | not listed | Specialized Body Geometry Power Sport |
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