CAP Barbell Cast Iron Kettlebell
- Item Weight: 30 pounds
- Material: Cast Iron
- Warranty Description: 30 days
- Color: Black
Last refreshed Jun 30, 2026 · Based on the Amazon listing and published specifications, not hands-on testing.
A solid, no-weld cast iron kettlebell with a wide handle built for both one and two-handed lifts, offered across enough weight steps to grow with a lifter.
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ASIN: B00WHIGEO4Model: SDK2BCategory: Kettlebells
Overview
Cast in one piece with no weld seam, this CAP Barbell kettlebell is coated in industrial enamel and sold across weights from 5 to 80 lbs. The SDK2B-030 model number here points to the 30 lb version.
A wide handle opening is built to take either a one-hand or two-hand grip, which matters for swings versus presses or rows. The flat bottom lets it stand upright for storage and also supports flat-bottom specific moves like renegade rows and handstand holds. CAP sells the line in 5 lb steps from 5 to 50 lbs and then 10 lb steps from 60 to 80 lbs, so buyers can move up within the same enamel-coated design.
- Model SDK2B-030 is the 30 lb version
- 5 lb increments from 5-50 lbs
- 10 lb increments from 60-80 lbs
- Industrial enamel paint finish
Who it's for
Fits lifters who want a single-piece cast iron kettlebell wide enough for two-handed lifts like swings and get-ups, and who plan to add heavier sizes from the same line later. Less relevant for anyone who specifically wants a vinyl or rubber coating over the iron.
Pros and cons
- No-weld, single-cast iron construction
- Handle wide enough for one or two hands
- Flat bottom supports specific floor exercises
- Wide weight range to grow into
- Enamel coating is louder on hard floors than vinyl
- No cushioning layer to protect flooring
Performance notes
Casting the bell in one piece, without a weld seam, is what the listing points to for long-term durability under repeated swings and drops. The enamel coating protects the iron rather than cushioning impact the way a vinyl coating would, so expect more noise on hard floors than a coated bell. The flat bottom is wide enough to support handstand push-up holds and renegade rows without tipping.
Specifications
| Brand | CAP Barbell |
|---|---|
| Model | SDK2B |
| Dimensions & fit | |
| Item Weight | 30 poundshigher than 54% of 36 kettlebells |
| Item Dimensions L x W x H | 7.7 × 5.5 × 9.1 inches |
| Construction & materials | |
| Material | Cast Iron |
| Color | Black |
| Warranty & support | |
| Warranty Description | 30 days |
| Other details | |
| Part Number | SDK2B-030 |
| Recommended Uses For Product | Kettlebell Exercises |
| Special Features | Portable |
| Item Type Name | CAP Barbell Cast Iron Kettlebell |
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Frequently asked questions
Is this kettlebell coated or bare cast iron?
It's cast iron coated in industrial enamel paint rather than left bare or coated in vinyl.
What weight is the SDK2B-030 model?
The model number corresponds to the 30 lb version in CAP's kettlebell line, which spans 5 to 80 lbs overall.
Can I use it for two-handed swings?
Yes, the handle opening is built wide enough for either a one-hand or two-hand grip.