2014 Specialized Sirrus Expert Disc Carbon vs 2013 Specialized Roll
We can't match sizes for these two: one of them has no stack and reach for the sizes shown.
What changes on the Specialized Roll
- Frame stack
- n/a
- One of the bikes has no number for this
- Frame reach
- n/a
- One of the bikes has no number for this
- Wheelbase
- −9 mm
- Shorter: quicker to change direction
- Head angle
- +0.5°
- Steeper: sharper steering
- Chainstays
- −20 mm
- Shorter: livelier
The two frames
Only the Specialized Sirrus Expert Disc Carbon is drawn. The Specialized Roll numbers we have for size M are missing the reach and stack.
Geometry side by side
| Measurement | Specialized Sirrus Expert Disc Carbon S | Specialized Roll M | Difference |
|---|---|---|---|
| Reach | 379mm | not listed | |
| Stack | 546mm | not listed | |
| Head tube angle | 72° | 72.5° | +0.5° |
| Seat tube angle | 74° | 74° | ±0.0° |
| Chainstay length | 412mm | 392mm | −20 mm |
| Wheelbase | 989mm | 980mm | −9 mm |
| Standover | 756mm | 768mm | +12 mm |
| Seat tube length | 475mm | 530mm | +55 mm |
| Fork length | 367 | not listed | |
| Head tube length | 145mm | 92.5mm | −53 mm |
Differences are the Specialized Roll minus the Specialized Sirrus Expert Disc Carbon. Full charts: 2014 Specialized Sirrus Expert Disc Carbon, 2013 Specialized Roll.
Where each sits in its class
Specialized Sirrus Expert Disc CarbonSpecialized Roll
AggressivePositionUpright
CalmSteeringQuick
PlayfulBalancePlanted
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 Disc CarbonExpert Disc Carbon | Specialized Roll1 |
|---|---|---|
| Frame | Specialized SL4 FACT | Specialized TT/ST/DT |
| Shifter | Shimano Tiagra | not listed |
| Derailleur | Shimano Tiagra, Shimano 105 | not listed |
| Cassette | Shimano HG-62 | not listed |
| Chain | KMC X10 | KMC Z510HX |
| Crankset | FSA Gossamer | not listed |
| Pedals | Specialized Sirrus | not listed |
| Wheelset | Specialized AXIS 1.0 | not listed |
| Tire | Specialized Espoir Sport | Specialized Espoir Sport, Specialized e |
| Brake | Formula C1 | not listed |
| Stem | Specialized Elite-Set | Specialized Roll |
| Saddle | Specialized Targa | Specialized Roll saddle |
| Fork | not listed | Specialized uni-crown |
| Hub | not listed | Specialized Roll |
| Handlebar | not listed | Specialized Roll |
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