2026 Cervélo R5 XPLR vs 2026 Specialized Tarmac SL8 Pro Shimano
The 56 is the Specialized Tarmac SL8 Pro Shimano size closest to your 56 Cervélo R5 XPLR. 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 Tarmac SL8 Pro Shimano
Compared with the Cervélo R5 XPLR in 56, the Specialized Tarmac SL8 Pro Shimano in 56 places the top of the head tube at about the same height and 4 mm further forward, relative to the bottom bracket.
- Frame stack
- −3 mm
- About the same height
- Frame reach
- +4 mm
- Longer frame reach
- Wheelbase
- −2 mm
- About the same
- Head angle
- +0.5°
- Steeper: sharper steering
- Chainstays
- ±0 mm
- About the same
The two frames
Cervélo R5 XPLR, 56Specialized Tarmac SL8 Pro Shimano, 56Drawn to scale and lined up at the bottom bracket.
Geometry side by side
| Measurement | Cervélo R5 XPLR 56 | Specialized Tarmac SL8 Pro Shimano 56 | Difference |
|---|---|---|---|
| Reach | 391.1 | 395 | +4 mm |
| Stack | 567.5 | 565 | −3 mm |
| Head tube angle | 73 | 73.5 | +0.5° |
| Seat tube angle | 73 | 73.5 | +0.5° |
| Effective top tube | 565 | not listed | |
| Chainstay length | 410 | 410 | ±0 mm |
| Wheelbase | 992.8 | 991 | −2 mm |
| BB drop | 74 | not listed | |
| Head tube length | 156 | 157 | +1 mm |
Differences are the Specialized Tarmac SL8 Pro Shimano minus the Cervélo R5 XPLR. Full charts: 2026 Cervélo R5 XPLR, 2026 Specialized Tarmac SL8 Pro Shimano.
Where each sits in its class
Cervélo R5 XPLRSpecialized Tarmac SL8 Pro Shimano
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 | Cervélo R5 XPLRRed XPLR AXS 1 | Specialized Tarmac SL8 Pro ShimanoPro - Shimano Ultegra Di2 |
|---|---|---|
| Frame | Cervélo R5 | Specialized Tarmac SL8 |
| Shifter | SRAM RED | Shimano Ultegra R8170 |
| Derailleur | SRAM XPLR AXS | Shimano Ultegra R8150 Di2 |
| Cassette | SRAM RED | Shimano Ultegra |
| Crankset | SRAM RED AXS | Shimano Ultegra R81000 |
| Wheelset | Reserve 34|37TA ST | Roval Rapide CL III |
| Tire | Vittoria Corsa Speed | Specialized S-Works Turbo |
| Brake | SRAM Red AXS | Shimano Ultegra R8170 |
| Rotor | SRAM Red | Shimano Ultegra R8170 |
| Handlebar | Cervélo HB18 | Roval Rapide Cockpit |
| Stem | Cervélo HB18 | Roval Rapide Cockpit |
| Seatpost | Cervélo SP33 D-Shaped | Specialized S-Works Tarmac SL8 |
| Saddle | Prologo Nago R4 | Specialized Power Pro |
| Fork | not listed | Specialized FACT 10r |
| Chain | not listed | Shimano XT M8100 |
| Bottom bracket | not listed | Shimano Threaded BSA |
| Bar tape | not listed | Supacaz Super Sticky Kush |
Know what is on every bike.
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