2019 Specialized Sirrus Men's Pro Carbon vs 2020 Specialized Sirrus X Comp Carbon Men's Spec
The Specialized Sirrus X Comp Carbon Men's Spec size closest to your L is the L. Compare the L instead
What changes on the Specialized Sirrus X Comp Carbon Men's Spec
Compared with the Specialized Sirrus Men's Pro Carbon in L, the Specialized Sirrus X Comp Carbon Men's Spec in S places the top of the head tube 47 mm lower and 15 mm further back, relative to the bottom bracket. Its wheelbase is 13 mm shorter, which can contribute to quicker direction changes.
- Frame stack
- −47 mm
- Lower front end
- Frame reach
- −15 mm
- Shorter frame reach
- Wheelbase
- −13 mm
- Shorter: quicker to change direction
- Head angle
- −1.5°
- Slacker: calmer steering
- Chainstays
- ±0 mm
- About the same
The two frames
Specialized Sirrus Men's Pro Carbon, LSpecialized Sirrus X Comp Carbon Men's Spec, SDrawn to scale and lined up at the bottom bracket.
Geometry side by side
| Measurement | Specialized Sirrus Men's Pro Carbon L | Specialized Sirrus X Comp Carbon Men's Spec S | Difference |
|---|---|---|---|
| Reach | 386mm | 371mm | −15 mm |
| Stack | 649mm | 602mm | −47 mm |
| Head tube angle | 71.5° | 70° | −1.5° |
| Seat tube angle | 73.5° | 73.5° | ±0.0° |
| Effective top tube | 580mm | not listed | |
| Chainstay length | 435mm | 435mm | ±0 mm |
| Wheelbase | 1063mm | 1050mm | −13 mm |
| BB drop | 70mm | 70mm | ±0 mm |
| BB height | 275mm | 275mm | ±0 mm |
| Standover | 813mm | 756mm | −57 mm |
| Seat tube length | 483mm | 416mm | −67 mm |
| Fork length | 390mm | 390mm | ±0 mm |
| Head tube length | 186mm | 143mm | −43 mm |
Differences are the Specialized Sirrus X Comp Carbon Men's Spec minus the Specialized Sirrus Men's Pro Carbon. Full charts: 2019 Specialized Sirrus Men's Pro Carbon, 2020 Specialized Sirrus X Comp Carbon Men's Spec.
Where each sits in its class
Specialized Sirrus Men's Pro CarbonSpecialized Sirrus X Comp Carbon Men's Spec
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 Men's Pro CarbonMen's Pro Carbon | Specialized Sirrus X Comp Carbon Men's SpecComp Carbon Men's Spec |
|---|---|---|
| Derailleur | microSHIFT Centos, Shimano Ultegra R8000 | SRAM NX |
| Cassette | Shimano 105 | not listed |
| Chain | KMC X-11 | KMC X11 |
| Crankset | Praxis Zayante | not listed |
| Tire | Specialized Espoir Sport Reflect | Specialized Tracer Pro |
| Brake | TRP Flow | Shimano MT201 |
| Seatpost | Specialized S-Works CG-R | not listed |
| Saddle | Specialized Phenom | Specialized Canopy |
| Shifter | not listed | SRAM NX |
Know what is on every bike.
Add your bike to Quiver. Keep its parts, setup, and service history together, then share your build.
Explore the app
