2023 Specialized Allez Sprint D'Aluisio Smartweld Alloy vs 2025 Colnago Y1Rs
The S is the Colnago Y1Rs size closest to your 52 Specialized Allez Sprint D'Aluisio Smartweld Alloy. 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 Allez Sprint D'Aluisio Smartweld Alloy in 52, the Colnago Y1Rs in S places the top of the head tube at about the same height and 6 mm further back, relative to the bottom bracket.
- Frame stack
- ±0 mm
- About the same height
- Frame reach
- −6 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 Allez Sprint D'Aluisio Smartweld Alloy is drawn. The Colnago Y1Rs numbers we have for size S are missing the wheelbase.
Geometry side by side
| Measurement | Specialized Allez Sprint D'Aluisio Smartweld Alloy 52 | Colnago Y1Rs S | Difference |
|---|---|---|---|
| Reach | 383mm | 377 | −6 mm |
| Stack | 520mm | 520 | ±0 mm |
| Head tube angle | 72.5° | 71.9 | −0.6° |
| Seat tube angle | 74° | 74.5 | +0.5° |
| Chainstay length | 410mm | 408 | −2 mm |
| Wheelbase | 976mm | not listed | |
| BB drop | 74mm | 74 | ±0 mm |
| BB height | 266mm | not listed | |
| Standover | 755mm | not listed | |
| Seat tube length | 495mm | not listed | |
| Fork length | 366mm | 376.5 | +11 mm |
| Head tube length | 115mm | 108.5 | −7 mm |
Differences are the Colnago Y1Rs minus the Specialized Allez Sprint D'Aluisio Smartweld Alloy. Full charts: 2023 Specialized Allez Sprint D'Aluisio Smartweld Alloy, 2025 Colnago Y1Rs.
Where each sits in its class
Specialized Allez Sprint D'Aluisio Smartweld AlloyColnago 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 Allez Sprint D'Aluisio Smartweld AlloyD'Aluisio Smartweld Alloy | Colnago Y1RsY1RS |
|---|---|---|
| Seatpost | Specialized S-Works Tarmac | not listed |
| 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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