2023 Specialized Sirrus 1.0 vs 2025 Specialized Sirrus X 1.0 Step-Through
The XS is the Specialized Sirrus X 1.0 Step-Through size closest to your S Specialized Sirrus 1.0. 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 Sirrus X 1.0 Step-Through
Compared with the Specialized Sirrus 1.0 in S, the Specialized Sirrus X 1.0 Step-Through in XS places the top of the head tube 7 mm lower and about as far forward, relative to the bottom bracket. Its wheelbase is 3 mm shorter, which can contribute to quicker direction changes.
- Frame stack
- −7 mm
- Lower front end
- Frame reach
- ±0 mm
- About the same reach
- Wheelbase
- −3 mm
- Shorter: quicker to change direction
- Head angle
- ±0.0°
- About the same head angle
- Chainstays
- ±0 mm
- About the same
The two frames
Specialized Sirrus 1.0, SSpecialized Sirrus X 1.0 Step-Through, XSDrawn to scale and lined up at the bottom bracket.
Geometry side by side
| Measurement | Specialized Sirrus 1.0 S | Specialized Sirrus X 1.0 Step-Through XS | Difference |
|---|---|---|---|
| Reach | 393mm | 393 | ±0 mm |
| Stack | 562mm | 555 | −7 mm |
| Head tube angle | 70° | 70 | ±0.0° |
| Seat tube angle | 73.5° | 73.5 | ±0.0° |
| Chainstay length | 440mm | 440 | ±0 mm |
| Wheelbase | 1061mm | 1058 | −3 mm |
| Standover | 745mm | 636 | −109 mm |
| Seat tube length | 440mm | 395 | −45 mm |
| Fork length | 395mm | 395 | ±0 mm |
| Head tube length | 147mm | 139 | −8 mm |
| Effective top tube | not listed | 557 | |
| BB drop | not listed | 70 | |
| BB height | not listed | 288 |
Differences are the Specialized Sirrus X 1.0 Step-Through minus the Specialized Sirrus 1.0. Full charts: 2023 Specialized Sirrus 1.0, 2025 Specialized Sirrus X 1.0 Step-Through.
Where each sits in its class
Specialized Sirrus 1.0Specialized Sirrus X 1.0 Step-Through
Each bike is ranked against the other commuter 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 Sirrus 1.01.0 | Specialized Sirrus X 1.0 Step-Through1.0 Step-Through |
|---|---|---|
| Shifter | Shimano EF500 | Shimano Altus SL-M315-7R |
| Derailleur | Shimano Tourney FD-TY710-2, Shimano Altus | Shimano Acera M3020 |
| Cassette | Shimano HG200 | microSHIFT CS-H074 |
| Chain | KMC X8 | KMC X8 |
| Tire | Specialized Roadsport | Specialized Pathfinder Sport |
| Saddle | Specialized Bridge Sport | Specialized Bridge Sport |
| Frame | not listed | Specialized Sirrus X |
| Fork | not listed | Specialized Sirrus X Steel Disc |
| Crankset | not listed | PROWHEEL |
| Chainring | not listed | Prowheel single |
| Bottom bracket | not listed | Specialized Square-tapered |
| Pedals | not listed | Specialized Body Geometry Fitness |
| Wheelset | not listed | Specialized 700C |
| Brake | not listed | Tektro MD-U310R |
| Handlebar | not listed | Specialized Alloy |
| Stem | not listed | Specialized Alloy |
| Grips | not listed | Specialized Neutralizer |
| Bar tape | not listed | Specialized Neutralizer |
| Headset | not listed | Specialized Headset |
| Seatpost | not listed | Specialized Alloy |
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