2021 Specialized Sirrus 4.0 vs 2022 Specialized Crossroads 1.0 Step Through
The M is the Specialized Crossroads 1.0 Step Through size closest to your S Specialized Sirrus 4.0. 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 Crossroads 1.0 Step Through
Compared with the Specialized Sirrus 4.0 in S, the Specialized Crossroads 1.0 Step Through in M places the top of the head tube 8 mm higher and about as far forward, relative to the bottom bracket. Its wheelbase is 15 mm longer, which can contribute to stability at speed.
- Frame stack
- +8 mm
- Higher front end
- Frame reach
- ±0 mm
- About the same reach
- Wheelbase
- +15 mm
- Longer: steadier at speed
- Head angle
- −0.5°
- Slacker: calmer steering
- Chainstays
- +10 mm
- Longer: more planted
The two frames
Specialized Sirrus 4.0, SSpecialized Crossroads 1.0 Step Through, MDrawn to scale and lined up at the bottom bracket.
Geometry side by side
| Measurement | Specialized Sirrus 4.0 S | Specialized Crossroads 1.0 Step Through M | Difference |
|---|---|---|---|
| Reach | 371mm | 371mm | ±0 mm |
| Stack | 602mm | 610mm | +8 mm |
| Head tube angle | 70° | 69.5° | −0.5° |
| Seat tube angle | 73.5° | 73° | −0.5° |
| Chainstay length | 435mm | 445mm | +10 mm |
| Wheelbase | 1050mm | 1065mm | +15 mm |
| Standover | 756mm | 573mm | −183 mm |
| Seat tube length | 416mm | 435mm | +19 mm |
| Fork length | 390mm | 410mm | +20 mm |
| Head tube length | 143mm | 183mm | +40 mm |
Differences are the Specialized Crossroads 1.0 Step Through minus the Specialized Sirrus 4.0. Full charts: 2021 Specialized Sirrus 4.0, 2022 Specialized Crossroads 1.0 Step Through.
Where each sits in its class
Specialized Sirrus 4.0Specialized Crossroads 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 4.04.0 | Specialized Crossroads 1.0 Step Through1.0 Step Through |
|---|---|---|
| Derailleur | microSHIFT R9, Shimano Sora | microSHIFT RD-M26S |
| Cassette | Shimano Sora | not listed |
| Chain | KMC X9 | KMC Z7 |
| Tire | Specialized RoadSport Reflect | Specialized Nimbus II Sport Reflect |
| Brake | Tektro HD-R280 | not listed |
| Saddle | Specialized Power Sport | not listed |
| Fork | not listed | Specialized Crossroads |
| Shifter | not listed | microSHIFT TS39 |
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