2019 Specialized Sirrus Women's Sport Step-Through vs 2021 Specialized Sirrus X 3.0
The XXS is the Specialized Sirrus X 3.0 size closest to your S Specialized Sirrus Women's Sport 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 3.0
Compared with the Specialized Sirrus Women's Sport Step-Through in S, the Specialized Sirrus X 3.0 in XXS 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 5 mm longer, which can contribute to stability at speed.
- Frame stack
- ±0 mm
- About the same height
- Frame reach
- ±0 mm
- About the same reach
- Wheelbase
- +5 mm
- Longer: steadier at speed
- Head angle
- −0.5°
- Slacker: calmer steering
- Chainstays
- ±0 mm
- About the same
The two frames
Specialized Sirrus Women's Sport Step-Through, SSpecialized Sirrus X 3.0, XXSDrawn to scale and lined up at the bottom bracket.
Geometry side by side
| Measurement | Specialized Sirrus Women's Sport Step-Through S | Specialized Sirrus X 3.0 XXS | Difference |
|---|---|---|---|
| Reach | 373mm | 373mm | ±0 mm |
| Stack | 536mm | 536mm | ±0 mm |
| Head tube angle | 70° | 69.5° | −0.5° |
| Seat tube angle | 73.5° | 73.5° | ±0.0° |
| Effective top tube | 532mm | not listed | |
| Chainstay length | 440mm | 440mm | ±0 mm |
| Wheelbase | 1031mm | 1036mm | +5 mm |
| BB drop | 70mm | not listed | |
| BB height | 275mm | not listed | |
| Standover | 615mm | 702mm | +87 mm |
| Seat tube length | 400mm | 360mm | −40 mm |
| Fork length | 390mm | 395mm | +5 mm |
| Head tube length | 124mm | 121mm | −3 mm |
Differences are the Specialized Sirrus X 3.0 minus the Specialized Sirrus Women's Sport Step-Through. Full charts: 2019 Specialized Sirrus Women's Sport Step-Through, 2021 Specialized Sirrus X 3.0.
Where each sits in its class
Specialized Sirrus Women's Sport Step-ThroughSpecialized Sirrus X 3.0
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 Women's Sport Step-ThroughWomen's Sport Step-Through | Specialized Sirrus X 3.03.0 |
|---|---|---|
| Derailleur | microSHIFT R9, Shimano Sora | Shimano Deore M4120 |
| Cassette | Shimano Sora | Shimano Deore |
| Chain | KMC X9 | KMC X10 |
| Crankset | Specialized 2-piece | not listed |
| Tire | Specialized Nimbus II Sport Reflect | Specialized Pathfinder Sport |
| Brake | Tektro HD-R310 | Tektro HD-R280 |
| Grips | Specialized Contour | Specialized Neutralizer |
| Saddle | Specialized Aldia Sport | Specialized Bridge Sport |
| Shifter | not listed | Shimano Deore M4100 |
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