2026 Specialized Tarmac SL8 Comp vs 2025 Colnago Y1Rs
The L is the Colnago Y1Rs size closest to your 56 Specialized Tarmac SL8 Comp. 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 Comp in 56, the Colnago Y1Rs in L places the top of the head tube at about the same height and about as far forward, relative to the bottom bracket.
- Frame stack
- ±0 mm
- About the same height
- Frame reach
- ±0 mm
- About the same reach
- Wheelbase
- n/a
- One of the bikes has no number for this
- Head angle
- ±0.0°
- About the same head angle
- Chainstays
- −2 mm
- About the same
The two frames
Only the Specialized Tarmac SL8 Comp is drawn. The Colnago Y1Rs numbers we have for size L are missing the wheelbase.
Geometry side by side
| Measurement | Specialized Tarmac SL8 Comp 56 | Colnago Y1Rs L | Difference |
|---|---|---|---|
| Reach | 395mm | 395 | ±0 mm |
| Stack | 565mm | 565 | ±0 mm |
| Head tube angle | 73.5° | 73.5 | ±0.0° |
| Seat tube angle | 73.5° | 73.7 | +0.2° |
| Chainstay length | 410mm | 408 | −2 mm |
| Wheelbase | 991mm | not listed | |
| BB drop | 72mm | 72 | ±0 mm |
| BB height | 268mm | not listed | |
| Standover | 786mm | not listed | |
| Seat tube length | not listed | not listed | |
| Fork length | 370mm | 376.5 | +7 mm |
| Head tube length | 157mm | 150.5 | −7 mm |
Differences are the Colnago Y1Rs minus the Specialized Tarmac SL8 Comp. Full charts: 2026 Specialized Tarmac SL8 Comp, 2025 Colnago Y1Rs.
Where each sits in its class
Specialized Tarmac SL8 CompColnago 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 Comp | Colnago Y1RsY1RS |
|---|---|---|
| Frame | not listed | Colnago Y1Rs |
| Shifter | not listed | Shimano Dura-Ace R9200 |
| Derailleur | not listed | Shimano Dura-Ace R9200 Di2 |
| Chain | not listed | Shimano XTR M9200 |
| Crankset | not listed | Shimano Dura-Ace R9200 |
| Wheelset | not listed | Vision SC45 |
| Tire | not listed | Pirelli P Zero Race |
| Brake | not listed | Shimano Dura-Ace R9200 |
| Stem | not listed | Colnago YY.01 |
| Saddle | not listed | Prologo Scratch M5 |
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