2020 Trek FX Sport Women's vs 2021 Specialized Sirrus 1.0
The M is the Specialized Sirrus 1.0 size closest to your M Trek FX Sport Women's. 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 1.0
Compared with the Trek FX Sport Women's in M, the Specialized Sirrus 1.0 in M places the top of the head tube 9 mm higher and 5 mm further back, relative to the bottom bracket.
- Frame stack
- +9 mm
- Higher front end
- Frame reach
- −5 mm
- Shorter frame reach
- Wheelbase
- −1 mm
- About the same
- Head angle
- ±0.0°
- About the same head angle
- Chainstays
- +2 mm
- About the same
The two frames
We can't draw these frames yet. The Trek FX Sport Women's numbers we have for size M are missing the seat angle. The numbers below still compare.
Geometry side by side
| Measurement | Trek FX Sport Women's M | Specialized Sirrus 1.0 M | Difference |
|---|---|---|---|
| Reach | 403 | 398mm | −5 mm |
| Stack | 584 | 593mm | +9 mm |
| Head tube angle | 71.0° | 71° | ±0.0° |
| Effective top tube | 570 | not listed | |
| Chainstay length | 438 | 440mm | +2 mm |
| Wheelbase | 1067 | 1066mm | −1 mm |
| BB drop | 65 | not listed | |
| BB height | 285 | not listed | |
| Standover | 743 | 775mm | +32 mm |
| Seat tube length | 457 | 470mm | +13 mm |
| Head tube length | 160 | 175mm | +15 mm |
| Seat tube angle | not listed | 73.5° | |
| Fork length | not listed | 395mm |
Differences are the Specialized Sirrus 1.0 minus the Trek FX Sport Women's. Full charts: 2020 Trek FX Sport Women's, 2021 Specialized Sirrus 1.0.
Where each sits in its class
Trek FX Sport Women'sSpecialized Sirrus 1.0
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 | Trek FX Sport Women's4 Women's | Specialized Sirrus 1.01.0 |
|---|---|---|
| Frame | Trek Alpha | not listed |
| Fork | Trek FX | not listed |
| Shifter | Shimano Tiagra 4700 | Shimano EF500 |
| Derailleur | Shimano Tiagra 4700 | Shimano Altus, Shimano Tourney FD-TY710 |
| Cassette | Shimano Tiagra HG-500 | Shimano HG200 |
| Chain | KMC X10 | KMC X8 |
| Crankset | Shimano R460 | Shimano Tourney |
| Pedals | Wellgo M141 | not listed |
| Tire | Bontrager R1 Hard-Case Lite | Specialized Roadsport |
| Brake | Shimano MT201 | not listed |
| Handlebar | Bontrager Satellite Plus IsoZone | not listed |
| Saddle | Bontrager H1 | Specialized Bridge Sport |
| Stem | not listed | Specialized Flowset |
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