How popular isCastelli in search?
In September 2026, there were an estimated 110K branded searches for Castelli worldwide which is down 18.5% over the last 12 months. Castelli holds 36.4% estimated Share of Search among bike shorts brands worldwide and is ranked 2nd of 3 competitors for search popularity. These are worldwide searches for English-language branded terms.
Assos54.6%
Castelli36.4%
Pearl Izumi9%
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Which bike shorts brands compete with Castelli?
Share of Search by month for Assos, Castelli, Pearl Izumi. The figures are in the table below the chart.
View monthly share of search table
| Month | Assos | Castelli | Pearl Izumi |
|---|---|---|---|
| Oct 2025 | 50.4% | 41.3% | 8.3% |
| Nov 2025 | 54.5% | 36.6% | 9% |
| Dec 2025 | 54.6% | 36.4% | 9% |
| Jan 2026 | 50.4% | 41.3% | 8.3% |
| Feb 2026 | 45.4% | 45.4% | 9.1% |
| Mar 2026 | 54.5% | 36.6% | 9% |
| Apr 2026 | 50.4% | 41.3% | 8.3% |
| May 2026 | 49.4% | 40.6% | 10% |
| Jun 2026 | 54.5% | 36.6% | 9% |
| Jul 2026 | 59.4% | 32.6% | 8% |
| Aug 2026 | 55.4% | 37.2% | 7.5% |
| Sep 2026 | 54.6% | 36.4% | 9% |
| Rank | Brand | Share of Search | Estimated monthly branded searches | vs prior month | Share change |
|---|---|---|---|---|---|
| 1, held 1st | 54.6% | 165K | -32.9% | -0.8 points | |
| 2, held 2nd | 36.4% | 110K | -33.3% | -0.7 points | |
| 3, held 3rd | 9% | 27.1K | -18.1% | +1.5 points |
Compare search popularity between Castelli and its closest rivals
Every comparison with Castelli
14 comparisons
How has branded search demand for Castelli changed worldwide over the last 12 months?
3 findings
- Across the 12 months ending September 2026, estimated monthly branded searches for Castelli worldwide fell from 135K to 110K.
- Across the 12 months ending September 2026, Castelli’s estimated Share of Search among bike shorts brands worldwide decreased from 41.3% to 36.4%.
- Across the 12 months ending September 2026, Castelli’s estimated Share of Search among bike shorts brands worldwide peaked at 45.4% in February 2026 and was lowest at 32.6% in July 2026.
How did search popularity change for bike shorts brands worldwide in September 2026?
3 changes

In September 2026, Pearl Izumi gained estimated Share of Search among bike shorts brands worldwide, from 7.5% to 9%.

In September 2026, Assos lost estimated Share of Search among bike shorts brands worldwide, from 55.4% to 54.6%.

In September 2026, Castelli lost estimated Share of Search among bike shorts brands worldwide, from 37.2% to 36.4%.
Where does Castelli compete?
| Competitor set | Rank | Share of Search | Ranking |
|---|---|---|---|
| Base layer brands | 5th of 6 | 6.2% | Show ranking |
| Bib shorts brands | 4th of 7 | 11.1% | Show ranking |
| Cycling gloves | 2nd of 6 | 13.2% | Show ranking |
| Cycling shorts | 3rd of 6 | 22.3% | Show ranking |
| Cycling jerseys | 3rd of 6 | 23.4% | Show ranking |
| Cycling jersey brands | 3rd of 3 | 26.8% | Show ranking |
| Long sleeve jersey brands | 3rd of 3 | 26.8% | Show ranking |
| Bike shorts brands | 2nd of 3 | 36.4% | Shown above |
How is Castelli measured?
Brandwave collects information about searches that people make online using Castelli’s name. When viewed over time, estimated search volumes for this branded term can be used to understand whether interest in the brand is growing, holding steady, or fading.
1 branded search term
- castelli
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