2025 Specialized Sirrus X 1.0 Step-Through vs 2025 Kona Dew
The Kona Dew size closest to your S is the S. Compare the S instead
What changes on the Kona Dew
Compared with the Specialized Sirrus X 1.0 Step-Through in S, the Kona Dew in M places the top of the head tube 44 mm higher and 23 mm further forward, relative to the bottom bracket. Its wheelbase is 48 mm longer, which can contribute to stability at speed.
- Frame stack
- +44 mm
- Higher front end
- Frame reach
- +23 mm
- Longer frame reach
- Wheelbase
- +48 mm
- Longer: steadier at speed
- Head angle
- ±0.0°
- About the same head angle
- Chainstays
- +10 mm
- Longer: more planted
The two frames
Specialized Sirrus X 1.0 Step-Through, SKona Dew, MDrawn to scale and lined up at the bottom bracket.
Geometry side by side
| Measurement | Specialized Sirrus X 1.0 Step-Through S | Kona Dew M | Difference |
|---|---|---|---|
| Reach | 400 | 423 | +23 mm |
| Stack | 563 | 607 | +44 mm |
| Head tube angle | 70 | 70.0° | ±0.0° |
| Seat tube angle | 73.5 | 74.0° | +0.5° |
| Effective top tube | 567 | 597 | +30 mm |
| Chainstay length | 440 | 450 | +10 mm |
| Wheelbase | 1068 | 1116 | +48 mm |
| BB drop | 70 | 70 | ±0 mm |
| BB height | 288 | 272 | −16 mm |
| Standover | 636 | 722 | +86 mm |
| Seat tube length | 450 | 470 | +20 mm |
| Fork length | 395 | 410 | +15 mm |
| Head tube length | 147 | 175 | +28 mm |
Differences are the Kona Dew minus the Specialized Sirrus X 1.0 Step-Through. Full charts: 2025 Specialized Sirrus X 1.0 Step-Through, 2025 Kona Dew.
Where each sits in its class
Specialized Sirrus X 1.0 Step-ThroughKona Dew
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 | Kona DewDew |
|---|---|---|
| Frame | Specialized Sirrus X | Kona 6061 |
| Fork | Specialized Sirrus X Steel Disc | Kona Project Two |
| Shifter | Shimano Altus SL-M315-7R | Shimano Altus |
| Derailleur | Shimano Acera M3020 | Shimano ESSA U2000 |
| Cassette | microSHIFT CS-H074 | Shimano HG400 |
| Chain | KMC X8 | KMC Z8.3 |
| Crankset | PROWHEEL | Shimano ESSA |
| Chainring | Prowheel single | not listed |
| Bottom bracket | Specialized Square-tapered | not listed |
| Pedals | Specialized Body Geometry Fitness | Feimin Platform |
| Wheelset | Specialized 700C | not listed |
| Tire | Specialized Pathfinder Sport | WTB Horizon Comp |
| Brake | Tektro MD-U310R | Tektro HD-M275 |
| Handlebar | Specialized Alloy | Kona Riser |
| Stem | Specialized Alloy | Kona Control |
| Grips | Specialized Neutralizer | Kona Key |
| Bar tape | Specialized Neutralizer | not listed |
| Headset | Specialized Headset | Feimin FP-H863 |
| Seatpost | Specialized Alloy | Kona Commuter |
| Saddle | Specialized Bridge Sport | Kona Commuter |
| Rotor | not listed | Tektro TR160 |
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