2021 Specialized Sirrus 3.0 Step Through vs 2021 Specialized Sirrus X 2.0 Step Through
The Specialized Sirrus X 2.0 Step Through size closest to your S is the S. Compare the S instead
What changes on the Specialized Sirrus X 2.0 Step Through
Compared with the Specialized Sirrus 3.0 Step Through in S, the Specialized Sirrus X 2.0 Step Through in M places the top of the head tube 30 mm higher and 8 mm further forward, relative to the bottom bracket. Its wheelbase is 9 mm longer, which can contribute to stability at speed.
- Frame stack
- +30 mm
- Higher front end
- Frame reach
- +8 mm
- Longer frame reach
- Wheelbase
- +9 mm
- Longer: steadier at speed
- Head angle
- +1.0°
- Steeper: sharper steering
- Chainstays
- ±0 mm
- About the same
The two frames
Specialized Sirrus 3.0 Step Through, SSpecialized Sirrus X 2.0 Step Through, MDrawn to scale and lined up at the bottom bracket.
Geometry side by side
| Measurement | Specialized Sirrus 3.0 Step Through S | Specialized Sirrus X 2.0 Step Through M | Difference |
|---|---|---|---|
| Reach | 400mm | 408mm | +8 mm |
| Stack | 563mm | 593mm | +30 mm |
| Head tube angle | 70° | 71° | +1.0° |
| Seat tube angle | 73.5° | 73.5° | ±0.0° |
| Chainstay length | 440mm | 440mm | ±0 mm |
| Wheelbase | 1068mm | 1077mm | +9 mm |
| Standover | 620mm | 641mm | +21 mm |
| Seat tube length | 450mm | 500mm | +50 mm |
| Fork length | 395mm | 395mm | ±0 mm |
| Head tube length | 147mm | 175mm | +28 mm |
Differences are the Specialized Sirrus X 2.0 Step Through minus the Specialized Sirrus 3.0 Step Through. Full charts: 2021 Specialized Sirrus 3.0 Step Through, 2021 Specialized Sirrus X 2.0 Step Through.
Where each sits in its class
Specialized Sirrus 3.0 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 3.0 Step Through3.0 Step Through | Specialized Sirrus X 2.0 Step Through |
|---|---|---|
| Derailleur | microSHIFT R9, Shimano Sora | not listed |
| Cassette | Shimano Sora | not listed |
| Chain | KMC X9 | not listed |
| Tire | Specialized RoadSport Reflect | not listed |
| Brake | Tektro HD-R280 | not listed |
| Saddle | Specialized Bridge Sport | not listed |
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