MODEL AND SIZING GUIDE
Specialized Sirrus size guide
Separate Sirrus, Sirrus X and frame variants when comparing an everyday bike or a used listing.
Guide updated 2026-09-22 · Source-check dates belong to individual entries. Independent editorial review pending.
This guide currently holds size labels only. Use it to identify the bike and find the missing chart; it cannot recommend a size from your height. The year can stay unknown until you identify the generation.
Which Specialized Sirrus do you have?
Retain the X designation, model number and Step-Through wording where present. Compare the actual frame and fork against the original listing; similar family names do not establish a shared chart.
Collect a full side photo, the model wording, frame-size sticker, wheel marking and a view of the brakes and fork. Open the original listing for the candidate entry and compare the specification and any photographs it provides. Changed components or matching paint alone cannot prove the generation.
Follow the guide to identifying an unknown model year. Leave the chart unconfirmed until the frame generation and wheel option match.
What is recorded for this model family?
17 catalogue entries: 0 with body ranges and 17 with size labels only. Documented model or catalogue years: 2027, 2026, 2025, 2023, 2022. These are source records, not a count of distinct frame generations or bikes currently in stock.
A source-check date is not a manufacturing date. Two sources can describe the same bike, and a retailer may list only some of its original sizes. Missing years or dimensions are left unknown.
Your selected entry
The details below belong only to the selected entry.
Specialized Sirrus X 2.0 — 2027
Model 2027 · Source checked 2026-09-20 · Manufacturer · Australia
Frame-size options from this exact Australian product selector. The linked geometry table may also include sizes not offered in this listing. Rider-height ranges have not been verified. Model years come from explicit manufacturer product data; generation names are retained as published.
Recorded size labels: XXS / XS / S / M / L / XL
No verified body ranges are held for this entry. These labels identify options to investigate; they are not personal size recommendations.
Browse all Specialized Sirrus variants and years
Choose an entry to see its recorded sizing information above. Each selection stays within this model-family guide.
| Exact model and source date | Recorded year | Available evidence | Open record |
|---|---|---|---|
| Specialized Sirrus X 2.0 — 2027Manufacturer · checked 2026-09-20 | Model 2027 | Size labels onlyXXS / XS / S / M / L / XL | View size labels for Specialized Sirrus X 2.0 — 2027 |
| Specialized Sirrus X 2.0 Step-Through — 2027Manufacturer · checked 2026-09-20 | Model 2027 | Size labels onlyXS / S / M | View size labels for Specialized Sirrus X 2.0 Step-Through — 2027 |
| Specialized Sirrus X 3.0 — 2027Manufacturer · checked 2026-09-20 | Model 2027 | Size labels onlyXS / S / M / L / XL | View size labels for Specialized Sirrus X 3.0 — 2027 |
| Specialized Sirrus X 5.0 — 2027Manufacturer · checked 2026-09-20 | Model 2027 | Size labels onlyS / M / L / XL | View size labels for Specialized Sirrus X 5.0 — 2027 |
| Specialized Sirrus X 2.0 — 2026Manufacturer · checked 2026-09-20 | Model 2026 | Size labels onlyXS / S / M / L / XL | View size labels for Specialized Sirrus X 2.0 — 2026 |
| Specialized Sirrus X 2.0 Step-Through — 2026Manufacturer · checked 2026-09-20 | Model 2026 | Size labels onlyXS / S / M | View size labels for Specialized Sirrus X 2.0 Step-Through — 2026 |
| Specialized Sirrus X 3.0 — 2026Manufacturer · checked 2026-09-20 | Model 2026 | Size labels onlyXS / S / M / L / XL | View size labels for Specialized Sirrus X 3.0 — 2026 |
| Specialized Sirrus X 4.0 — 2026Manufacturer · checked 2026-09-20 | Model 2026 | Size labels onlyXXS / XS / S / M | View size labels for Specialized Sirrus X 4.0 — 2026 |
| Specialized Sirrus X 5.0 — 2026Manufacturer · checked 2026-09-20 | Model 2026 | Size labels onlyXS / S / M / L / XL | View size labels for Specialized Sirrus X 5.0 — 2026 |
| Specialized Sirrus X 2.0 — 2025Manufacturer · checked 2026-09-20 | Model 2025 | Size labels onlyXS / S / M / L / XL | View size labels for Specialized Sirrus X 2.0 — 2025 |
| Specialized Sirrus X 3.0 — 2025Manufacturer · checked 2026-09-20 | Model 2025 | Size labels onlyXS / S / M / L / XL | View size labels for Specialized Sirrus X 3.0 — 2025 |
| Specialized Sirrus 1.0 — 2023Manufacturer · checked 2026-09-20 | Model 2023 | Size labels onlyXXS / XS / S / M / L / XL | View size labels for Specialized Sirrus 1.0 — 2023 |
| Specialized Sirrus 2.0 — 2023Manufacturer · checked 2026-09-20 | Model 2023 | Size labels onlyXXS | View size labels for Specialized Sirrus 2.0 — 2023 |
| Specialized Sirrus X 5.0 — 2023Manufacturer · checked 2026-09-20 | Model 2023 | Size labels onlyXS / S / M / L | View size labels for Specialized Sirrus X 5.0 — 2023 |
| Specialized Sirrus 1.0 — 2022Manufacturer · checked 2026-09-20 | Model 2022 | Size labels onlyXXS / XS / S / M / L / XL | View size labels for Specialized Sirrus 1.0 — 2022 |
| Specialized Sirrus 4.0 — 2022Manufacturer · checked 2026-09-20 | Model 2022 | Size labels onlyXXS / XS / S / M / L / XL | View size labels for Specialized Sirrus 4.0 — 2022 |
| Specialized Sirrus X 3.0 — 2022Manufacturer · checked 2026-09-20 | Model 2022 | Size labels onlyXXS / XS / S / M / L / XL | View size labels for Specialized Sirrus X 3.0 — 2022 |
How to choose between sizes
Check mounting clearance, normal hand position and brake reach on the exact frame. Size-label-only entries need the corresponding body-range chart before making a height-based recommendation.
Measure height and inside leg twice, barefoot. Where both are published, keep each height and inside-leg pair together. Keep all overlapping candidates. If the measurements conflict, sit outside the chart or rely on an open-ended band, seek individual advice rather than extrapolating.
Read the guide to choosing between two bike sizes. Frame stack and reach do not include the whole hand or forearm-pad position, and a height chart cannot establish handling or comfort.
Buying this bike second hand?
Ask which parts have changed, confirm the physical frame label and check the actual component limits. A receipt date may differ from the model year. Photographs help identify the bike; they cannot replace a mechanical inspection.
Use the second-hand bike sizing checklist before travelling to see a listing.
Other model families to compare
These are separate bikes to investigate, not equivalent sizes or a ranked buying recommendation. Match each candidate to its own chart.