2025 Specialized Sirrus X 1.0 Step-Through vs 2023 Specialized Sirrus 2.0 Step-Through
The S is the Specialized Sirrus 2.0 Step-Through size closest to your S Specialized Sirrus X 1.0 Step-Through. 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 2.0 Step-Through
Compared with the Specialized Sirrus X 1.0 Step-Through in S, the Specialized Sirrus 2.0 Step-Through in S places the top of the head tube at about the same height and about as far forward, relative to the bottom bracket. Its wheelbase is 10 mm shorter, which can contribute to quicker direction changes.
- Frame stack
- ±0 mm
- About the same height
- Frame reach
- ±0 mm
- About the same reach
- Wheelbase
- −10 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 X 1.0 Step-Through, SSpecialized Sirrus 2.0 Step-Through, SDrawn to scale and lined up at the bottom bracket.
Geometry side by side
| Measurement | Specialized Sirrus X 1.0 Step-Through S | Specialized Sirrus 2.0 Step-Through S | Difference |
|---|---|---|---|
| Reach | 400 | 400mm | ±0 mm |
| Stack | 563 | 563mm | ±0 mm |
| Head tube angle | 70 | 70° | ±0.0° |
| Seat tube angle | 73.5 | 73.5° | ±0.0° |
| Effective top tube | 567 | not listed | |
| Chainstay length | 440 | 440mm | ±0 mm |
| Wheelbase | 1068 | 1058mm | −10 mm |
| BB drop | 70 | not listed | |
| BB height | 288 | not listed | |
| Standover | 636 | 641mm | +5 mm |
| Seat tube length | 450 | 450mm | ±0 mm |
| Fork length | 395 | 395mm | ±0 mm |
| Head tube length | 147 | 147mm | ±0 mm |
Differences are the Specialized Sirrus 2.0 Step-Through minus the Specialized Sirrus X 1.0 Step-Through. Full charts: 2025 Specialized Sirrus X 1.0 Step-Through, 2023 Specialized Sirrus 2.0 Step-Through.
Where each sits in its class
Specialized Sirrus X 1.0 Step-ThroughSpecialized Sirrus 2.0 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 X 1.0 Step-Through1.0 Step-Through | Specialized Sirrus 2.0 Step-Through2.0 Step-Through |
|---|---|---|
| Frame | Specialized Sirrus X | not listed |
| Fork | Specialized Sirrus X Steel Disc | not listed |
| Shifter | Shimano Altus SL-M315-7R | Shimano Acera M315 |
| Derailleur | Shimano Acera M3020 | Shimano Tourney FD-TY606, Shimano Acera |
| Cassette | microSHIFT CS-H074 | Shimano HG-31 |
| Chain | KMC X8 | KMC X8 |
| Crankset | PROWHEEL | Shimano FC-TY501 |
| Chainring | Prowheel single | not listed |
| Bottom bracket | Specialized Square-tapered | not listed |
| Pedals | Specialized Body Geometry Fitness | not listed |
| Wheelset | Specialized 700C | not listed |
| Tire | Specialized Pathfinder Sport | Specialized RoadSport Reflect |
| Brake | Tektro MD-U310R | Promax F1 |
| Handlebar | Specialized Alloy | not listed |
| Stem | Specialized Alloy | not listed |
| Grips | Specialized Neutralizer | Specialized Contour |
| Bar tape | Specialized Neutralizer | not listed |
| Headset | Specialized Headset | not listed |
| Seatpost | Specialized Alloy | not listed |
| Saddle | Specialized Bridge Sport | Specialized Bridge Sport |
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