2021 Specialized Sirrus X 2.0 Step Through vs 2020 Trek FX Sport Women's
The Trek FX Sport Women's size closest to your S is the S. Compare the S instead
What changes on the Trek FX Sport Women's
Compared with the Specialized Sirrus X 2.0 Step Through in S, the Trek FX Sport Women's in M places the top of the head tube 21 mm higher and 3 mm further forward, relative to the bottom bracket.
- Frame stack
- +21 mm
- Higher front end
- Frame reach
- +3 mm
- Longer frame reach
- Wheelbase
- −1 mm
- About the same
- Head angle
- +1.0°
- Steeper: sharper steering
- Chainstays
- −2 mm
- About the same
The two frames
Only the Specialized Sirrus X 2.0 Step Through is drawn. The Trek FX Sport Women's numbers we have for size M are missing the seat angle.
Geometry side by side
| Measurement | Specialized Sirrus X 2.0 Step Through S | Trek FX Sport Women's M | Difference |
|---|---|---|---|
| Reach | 400mm | 403 | +3 mm |
| Stack | 563mm | 584 | +21 mm |
| Head tube angle | 70° | 71.0° | +1.0° |
| Seat tube angle | 73.5° | not listed | |
| Chainstay length | 440mm | 438 | −2 mm |
| Wheelbase | 1068mm | 1067 | −1 mm |
| Standover | 636mm | 743 | +107 mm |
| Seat tube length | 450mm | 457 | +7 mm |
| Fork length | 395mm | not listed | |
| Head tube length | 147mm | 160 | +13 mm |
| Effective top tube | not listed | 570 | |
| BB drop | not listed | 65 | |
| BB height | not listed | 285 |
Differences are the Trek FX Sport Women's minus the Specialized Sirrus X 2.0 Step Through. Full charts: 2021 Specialized Sirrus X 2.0 Step Through, 2020 Trek FX Sport Women's.
Where each sits in its class
Specialized Sirrus X 2.0 Step ThroughTrek FX Sport Women's
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 2.0 Step Through | Trek FX Sport Women's4 Women's |
|---|---|---|
| Frame | not listed | Trek Alpha |
| Fork | not listed | Trek FX |
| Shifter | not listed | Shimano Tiagra 4700 |
| Derailleur | not listed | Shimano Tiagra 4700 |
| Cassette | not listed | Shimano Tiagra HG-500 |
| Chain | not listed | KMC X10 |
| Crankset | not listed | Shimano R460 |
| Pedals | not listed | Wellgo M141 |
| Tire | not listed | Bontrager R1 Hard-Case Lite |
| Brake | not listed | Shimano MT201 |
| Handlebar | not listed | Bontrager Satellite Plus IsoZone |
| Saddle | not listed | Bontrager H1 |
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