Specialized Sirrus (alloy) geometry
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Size S
Render
Align
Geometry
| Size | S | M | L | XL | XXL |
|---|---|---|---|---|---|
| Stack mm | 564 | 593 | 611 | 639 | 670 |
| Reach mm | 388 | 400 | 402 | 414 | 426 |
| Head tube angle ° | 70.0 | 71.0 | 71.5 | 72.0 | 72.0 |
| Seat tube angle ° | 73.5 | 73.5 | 73.5 | 73.5 | 73.0 |
| Head tube length mm | 153 | 179 | 196 | 223 | 256 |
| Seat tube mm | 415 | 455 | 495 | 535 | 565 |
| Chainstay mm | 440 | 440 | 440 | 440 | 440 |
| BB drop mm | 70 | 70 | 70 | 70 | 70 |
| Fork rake mm | 51 | 51 | 51 | 51 | 51 |
| Stack to reach | 1.45 | 1.48 | 1.52 | 1.54 | 1.57 |
| Effective top tube mmi | 555 | 576 | 583 | 603 | 631 |
| Wheelbase mmi | 1056 | 1068 | 1071 | 1087 | 1109 |
SizeSkey specs
Stack-to-reach (size S)1.45More aggressive (lower and longer) than 63% of flat-bar frames in the database at comparable sizes.
Closest geometry matches (size S)
Matched by stack, reach and head tube angle.
More from Specialized
Nearest size to the Sirrus S.