2021 Specialized Sirrus 2.0 Step Through vs 2021 Specialized Sirrus X 2.0 Step Through
The XS is the Specialized Sirrus X 2.0 Step Through size closest to your XS Specialized Sirrus 2.0 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 X 2.0 Step Through
Compared with the Specialized Sirrus 2.0 Step Through in XS, the Specialized Sirrus X 2.0 Step Through in XS 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
- ±0 mm
- About the same
- Head angle
- ±0.0°
- About the same head angle
- Chainstays
- ±0 mm
- About the same
The two frames
Specialized Sirrus 2.0 Step Through, XSSpecialized Sirrus X 2.0 Step Through, XSDrawn to scale and lined up at the bottom bracket.
Geometry side by side
| Measurement | Specialized Sirrus 2.0 Step Through XS | Specialized Sirrus X 2.0 Step Through XS | Difference |
|---|---|---|---|
| Reach | 393mm | 393mm | ±0 mm |
| Stack | 555mm | 555mm | ±0 mm |
| Head tube angle | 70° | 70° | ±0.0° |
| Seat tube angle | 73.5° | 73.5° | ±0.0° |
| Chainstay length | 440mm | 440mm | ±0 mm |
| Wheelbase | 1058mm | 1058mm | ±0 mm |
| Standover | 620mm | 636mm | +16 mm |
| Seat tube length | 395mm | 395mm | ±0 mm |
| Fork length | 395mm | 395mm | ±0 mm |
| Head tube length | 139mm | 139mm | ±0 mm |
Differences are the Specialized Sirrus X 2.0 Step Through minus the Specialized Sirrus 2.0 Step Through. Full charts: 2021 Specialized Sirrus 2.0 Step Through, 2021 Specialized Sirrus X 2.0 Step Through.
Where each sits in its class
Specialized Sirrus 2.0 Step ThroughSpecialized Sirrus X 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 2.0 Step Through2.0 Step Through | Specialized Sirrus X 2.0 Step Through |
|---|---|---|
| Shifter | Shimano Acera | not listed |
| Derailleur | Shimano Tourney FD-TY710, Shimano Acera | not listed |
| Cassette | Shimano Altus | not listed |
| Chain | KMC X8 | not listed |
| Crankset | Shimano Tourney | not listed |
| Tire | Specialized RoadSport Reflect | not listed |
| Brake | Promax F1 | not listed |
| Saddle | Specialized Bridge Sport | not listed |
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