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Onnit Primal Bell - Gorilla (90 lb)

4.1 / 5 editorial rating

The Gorilla is Onnit's heavyweight 40 kg Primal Bell, a sculpted cast-iron kettlebell for advanced swings and double-bell work.

$215 MSRP · ref. May 14, 2026
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MSRP is a reference figure — live price is on the retailer's site.

Overview

The Gorilla anchors the heavy end of Onnit's Primal Bell range at 90 pounds, roughly 40 kilograms, sculpted with a brooding gorilla face that matches its standing as the most imposing bell in the set. As with the lighter Primal Bells, the artwork sits on top of a legitimate cast-iron kettlebell: single-piece casting, a handle finished for two-handed gripping, and a balance that lets heavy swings and double-bell front squats track predictably. At 40 kilos this is firmly advanced equipment, suited to strong lifters doing heavy two-handed swings, deadlift variations, and loaded carries rather than overhead pressing for most people. The handle is wide and thick to suit the load, and the window beneath it is sized so two hands fit during swings, though the sheer mass means grip endurance becomes a real factor. The coated finish leans glossy, which showcases the sculpting but benefits from chalk during working sets. The flat base is broad enough to set the bell down safely, an important consideration at this weight. Storage and price are the main practical drawbacks: the body is large, and the artwork carries a premium over a plain heavy bell. For a strong lifter who wants a statement heavyweight with character, the Gorilla earns its place, but the upcharge over a functional plain bell is real.

Pros

  • +Legitimate 40 kg cast-iron bell under the sculpting
  • +Wide handle and broad base suit heavy swings
  • +Bold gorilla design is a genuine statement piece
  • +Predictable balance for two-handed and double-bell work

Cons

  • Glossy finish needs chalk under heavy load
  • Large body demands significant storage space
  • Steep premium over a plain heavy bell

Full specifications

Kettlebells specs

Type Cast Iron
Weight 90 lb
Adjustable No
Adjustable range
Coating E Coat
Handle width 5.8"
Fill material Cast Iron
Flat bottom Yes
Competition spec No

Dimensions & weight

Dimensions (L×W×H) 9.5" × 9.5" × 12.5"
Floor footprint 0.6 sq ft
Product weight 90 lb

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