2025 Specialized Tarmac SL8 SRAM vs 2025 Colnago Y1Rs
The S is the Colnago Y1Rs size closest to your 52 Specialized Tarmac SL8 SRAM. 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 SRAM in 52, the Colnago Y1Rs in S places the top of the head tube 7 mm lower and 3 mm further back, relative to the bottom bracket.
- Frame stack
- −7 mm
- Lower front end
- Frame reach
- −3 mm
- Shorter frame reach
- Wheelbase
- n/a
- One of the bikes has no number for this
- Head angle
- −0.6°
- Slacker: calmer steering
- Chainstays
- −2 mm
- About the same
The two frames
Only the Specialized Tarmac SL8 SRAM is drawn. The Colnago Y1Rs numbers we have for size S are missing the wheelbase.
Geometry side by side
| Measurement | Specialized Tarmac SL8 SRAM 52 | Colnago Y1Rs S | Difference |
|---|---|---|---|
| Reach | 380mm | 377 | −3 mm |
| Stack | 527mm | 520 | −7 mm |
| Head tube angle | 72.5° | 71.9 | −0.6° |
| Seat tube angle | 74° | 74.5 | +0.5° |
| Effective top tube | 531mm | not listed | |
| Chainstay length | 410mm | 408 | −2 mm |
| Wheelbase | 975mm | not listed | |
| BB drop | 74mm | 74 | ±0 mm |
| BB height | 266mm | not listed | |
| Standover | 746mm | not listed | |
| Seat tube length | 456mm | not listed | |
| Fork length | 370mm | 376.5 | +7 mm |
| Head tube length | 120mm | 108.5 | −12 mm |
Differences are the Colnago Y1Rs minus the Specialized Tarmac SL8 SRAM. Full charts: 2025 Specialized Tarmac SL8 SRAM, 2025 Colnago Y1Rs.
Where each sits in its class
Specialized Tarmac SL8 SRAMColnago 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 SRAMS-Works - SRAM RED AXS | Colnago Y1RsY1RS |
|---|---|---|
| Frame | Specialized S-Works Tarmac SL8 FACT | Colnago Y1Rs |
| Shifter | SRAM RED AXS | Shimano Dura-Ace R9200 |
| Cassette | SRAM RED XG-1290 | not listed |
| Chain | SRAM RED | Shimano XTR M9200 |
| Crankset | SRAM RED AXS Power Meter | Shimano Dura-Ace R9200 |
| Bottom bracket | SRAM DUB | not listed |
| Wheelset | Roval Rapide CLX II | Vision SC45 |
| Tire | Specialized S-Works Turbo Rapidair 2Br | Pirelli P Zero Race |
| Brake | SRAM Red AXS | Shimano Dura-Ace R9200 |
| Handlebar | Roval Rapide Cockpit | not listed |
| Stem | Roval Rapide Cockpit | Colnago YY.01 |
| Saddle | Specialized S-Works Power | Prologo Scratch M5 |
| Derailleur | not listed | Shimano Dura-Ace R9200 Di2 |
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