Bells of Steel
Bells of Steel Competition Kettlebell
$138.99
Best Kettlebells · head-to-head
A sourced, side-by-side comparison. CAP Barbell Cast Iron Kettlebell is cheaper at $39.97. Every spec and price links to its source.
Bells of Steel
$138.99
CAP Barbell
$39.97Cheaper
On the specs we track, they're closely matched. The CAP Barbell Cast Iron Kettlebell is the cheaper at $39.97.
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✓ marks the stronger figure where "more" — or "less", for price and weight — is unambiguously better.
| Spec | | |
|---|---|---|
| US price | $138.99 | $39.97 |
| Brand | Bells of Steel | CAP Barbell |
| Released | — | — |
| Weight range (lb) | 9-106 | 10-80 |
| Material | steel-competition | cast-iron |
| Coating | powder-coat | — |
| Handle diameter (mm) | 35 | — |
| Adjustable | No | No |
| Weight increment (lb) | — | — |
| Competition standard | No | No |
| Flat base | Yes | Yes |
| Single cast construction | Yes | Yes |
| Warranty years | 100 | — |
Sources — Bells of Steel Competition Kettlebell: bellsofsteel.us (verified 2026-07-13). CAP Barbell Cast Iron Kettlebell: capbarbell.com (verified 2026-07-13).
Where the two actually differ on the specs we track (2 of 10). Matching specs are omitted.