2017 Specialized Sirrus Expert Carbon vs 2019 Cannondale Quick Disc
The M is the Cannondale Quick Disc size closest to your S Specialized Sirrus Expert Carbon. 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 Cannondale Quick Disc
Compared with the Specialized Sirrus Expert Carbon in S, the Cannondale Quick Disc in M places the top of the head tube 4 mm higher and about as far forward, relative to the bottom bracket. Its wheelbase is 18 mm longer, which can contribute to stability at speed.
- Frame stack
- +4 mm
- Higher front end
- Frame reach
- +1 mm
- About the same reach
- Wheelbase
- +18 mm
- Longer: steadier at speed
- Head angle
- −1.0°
- Slacker: calmer steering
- Chainstays
- ±0 mm
- About the same
The two frames
Specialized Sirrus Expert Carbon, SCannondale Quick Disc, MDrawn to scale and lined up at the bottom bracket.
Geometry side by side
| Measurement | Specialized Sirrus Expert Carbon S | Cannondale Quick Disc M | Difference |
|---|---|---|---|
| Reach | 395mm | 396 | +1 mm |
| Stack | 574mm | 578 | +4 mm |
| Head tube angle | 71° | 70 | −1.0° |
| Seat tube angle | 73.3° | 73 | −0.3° |
| Effective top tube | 568mm | 573 | +5 mm |
| Chainstay length | 435mm | 435 | ±0 mm |
| Wheelbase | 1052mm | 1070 | +18 mm |
| BB drop | 70mm | 68 | −2 mm |
| BB height | 275mm | 277 | +2 mm |
| Standover | 752.2mm | 731 | −21 mm |
| Seat tube length | 440mm | 450 | +10 mm |
| Fork length | 398mm | not listed | |
| Head tube length | 150mm | 160 | +10 mm |
Differences are the Cannondale Quick Disc minus the Specialized Sirrus Expert Carbon. Full charts: 2017 Specialized Sirrus Expert Carbon, 2019 Cannondale Quick Disc.
Where each sits in its class
Specialized Sirrus Expert CarbonCannondale Quick Disc
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 Expert CarbonExpert Carbon | Cannondale Quick DiscDisc 1 |
|---|---|---|
| Derailleur | Shimano 105 | Shimano 105, Shimano 105 GS |
| Cassette | Shimano 105 | Shimano 105 |
| Chain | KMC X11-1 | Shimano HG601 |
| Crankset | FSA Gossamer Pro | FSA Omega |
| Bottom bracket | Specialized BB386 Evo | not listed |
| Wheelset | Specialized Axis Expert | not listed |
| Tire | Specialized Espoir Sport Reflect | Schwalbe Spicer |
| Brake | Shimano Deore | Shimano MT201 hydro |
| Stem | Specialized Flowset | Cannondale C3 |
| Seatpost | Specialized CG-R | Cannondale C3 |
| Saddle | Specialized Canopy Comp | Cannondale Performance |
| Shifter | not listed | Shimano RS700 FB |
| Pedals | not listed | Cannondale Reinforced |
| Rim | not listed | DC3.0 |
| Handlebar | not listed | Cannondale C3 |
| Grips | not listed | Cannondale Density |
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