2025 Specialized Tarmac SL8 Expert vs 2025 Colnago Y1Rs
The S is the Colnago Y1Rs size closest to your 49 Specialized Tarmac SL8 Expert. 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 Colnago Y1Rs
Compared with the Specialized Tarmac SL8 Expert in 49, the Colnago Y1Rs in S places the top of the head tube 6 mm higher and about as far forward, relative to the bottom bracket.
- Frame stack
- +6 mm
- Higher front end
- Frame reach
- +2 mm
- About the same reach
- Wheelbase
- n/a
- One of the bikes has no number for this
- Head angle
- +0.2°
- About the same head angle
- Chainstays
- −2 mm
- About the same
The two frames
Only the Specialized Tarmac SL8 Expert is drawn. The Colnago Y1Rs numbers we have for size S are missing the wheelbase.
Geometry side by side
| Measurement | Specialized Tarmac SL8 Expert 49 | Colnago Y1Rs S | Difference |
|---|---|---|---|
| Reach | 375 | 377 | +2 mm |
| Stack | 514 | 520 | +6 mm |
| Head tube angle | 71.75 | 71.9 | +0.2° |
| Seat tube angle | 75.5 | 74.5 | −1.0° |
| Chainstay length | 410 | 408 | −2 mm |
| Wheelbase | 973 | not listed | |
| BB drop | 75 | 74 | −1 mm |
| BB height | 266 | not listed | |
| Standover | 735 | not listed | |
| Seat tube length | 445 | not listed | |
| Fork length | 370 | 376.5 | +7 mm |
| Head tube length | 109 | 108.5 | −1 mm |
Differences are the Colnago Y1Rs minus the Specialized Tarmac SL8 Expert. Full charts: 2025 Specialized Tarmac SL8 Expert, 2025 Colnago Y1Rs.
Where each sits in its class
Specialized Tarmac SL8 ExpertColnago Y1Rs
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 Tarmac SL8 ExpertExpert | Colnago Y1RsY1RS |
|---|---|---|
| Frame | Specialized Tarmac SL8 FACT | Colnago Y1Rs |
| Fork | Specialized FACT 10r Carbon | not listed |
| Shifter | Shimano Ultegra R8170 Di2 | Shimano Dura-Ace R9200 |
| Derailleur | Shimano Ultegra R8150 Di2, Shimano Ultegra R8150 Di2 front | Shimano Dura-Ace R9200 Di2 |
| Cassette | Shimano Ultegra | not listed |
| Chain | Shimano Ultegra | Shimano XTR M9200 |
| Crankset | Shimano Ultegra R8100 | Shimano Dura-Ace R9200 |
| Chainring | Shimano Ultegra | not listed |
| Bottom bracket | Shimano Ultegra | not listed |
| Wheelset | Roval C38 | Vision SC45 |
| Tire | Specialized S-Works Turbo | Pirelli P Zero Race |
| Brake | Shimano Ultegra R8170 Di2, Shimano Ultegra R8170 Di2 rear | Shimano Dura-Ace R9200 |
| Rotor | Shimano Ultegra | not listed |
| Handlebar | Specialized Expert Shallow Drop | not listed |
| Stem | Specialized Tarmac | Colnago YY.01 |
| Bar tape | Supacaz Super Sticky Kush | not listed |
| Headset | Integrated | not listed |
| Seatpost | Specialized S-Works Tarmac SL8 | not listed |
| Saddle | Specialized Power Expert | Prologo Scratch M5 |
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