Specialized Sirrus 4.0 (carbon) geometry
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Size XXS
Render
Align
Geometry
| Size | XXS | M | L | XL |
|---|---|---|---|---|
| Stack mm | 587 | 635 | 651 | 672 |
| Reach mm | 355 | 382 | 386 | 398 |
| Head tube angle ° | 69.5 | 71.0 | 71.0 | 71.0 |
| Seat tube angle ° | 73.5 | 73.5 | 73.5 | 73.5 |
| Head tube length mm | 111 | 169 | 186 | 208 |
| Seat tube mm | 360 | 470 | 510 | 530 |
| Chainstay mm | 440 | 440 | 440 | 440 |
| BB drop mm | 70 | 70 | 70 | 70 |
| Fork rake mm | 51 | 51 | 51 | 51 |
| Stack to reach | 1.65 | 1.66 | 1.69 | 1.69 |
| Effective top tube mmi | 529 | 570 | 579 | 597 |
| Wheelbase mmi | 1037 | 1065 | 1074 | 1094 |
SizeXXSkey specs
Stack-to-reach (size XXS)1.65More relaxed (taller and shorter) than 94% of flat-bar frames in the database at comparable sizes.
Closest geometry matches (size XXS)
Matched by stack, reach and head tube angle.
Specialized Sirrus X 4.0carbon, 2020 onXXS · 587 / 355Co-op Cycles CTY 2.1CurrentXS · 588.2 / 355Bombtrack Munroe Loopstep-through, CurrentXS · 588 / 362Specialized Sirrus X 5.0carbon, 2026 onXS · 580 / 350Jamis DXT Comp Step-Over2018–1914 · 583 / 356Jamis DXT Femme Comp / Sport2015–1614 · 583 / 356
More from Specialized
Nearest size to the Sirrus 4.0 XXS.