PROIRON
PROIRON 20kg/30kg Cast Iron Adjustable Dumbbell Set
Spinlock plate-loaded set published as 20 kg or 30 kg total with 0.5 / 1.25 / 2.5 kg plates, 35 cm bars, and a connector tube; live product URL returned 404.
Spec-based page. We did not test this product. Source: manufacturer page.
Who it's for
Buyers who want PROIRON's published spinlock plate-and-collar set that converts to a barbell via the included steel tube.
Who should skip
Anyone who wants a selector-dial or pin-adjust system rather than spinlock collars.
| HeightAssembled height versus your ceiling. | Not published |
|---|---|
| Width | Not published |
| Length | Not published |
| Unit weight | 66.1 lb30 kg |
|---|---|
| Min weight | Not published |
| Max weight | 66.1 lb30 kg |
| Increment | 1.1 lb0.5 kg |
| Adjustment | spinlock |
|---|---|
| Warranty | Not published |
Source: manufacturer spec sheet, checked 2026-10-14. How we measure
PROIRON's official listing (indexed; live fetch returned 404) specifies a 20 kg set with four 0.5 kg, four 1.25 kg, and four 2.5 kg plates, two 35 cm chrome bars, four spinlock collars, and one connection tube.
The 30 kg set uses the same 0.5 and 1.25 kg plates plus eight 2.5 kg plates and is published as a 30 kg maximum.
Handle-empty minimum weight, USD MSRP, overall L×W×H, and warranty were not on the indexed manufacturer page.
Nearby specs
| Spec | PROIRON 20kg/30kg Cast Iron Adjustable Dumbbell Set | Bowflex SelectTech 552 Check price on Amazonon Amazon on Amazon. As an Amazon Associate I earn from qualifying purchases. | Bowflex SelectTech 1090 Check price on Amazonon Amazon on Amazon. As an Amazon Associate I earn from qualifying purchases. |
|---|---|---|---|
| Height | Not published | ✓ 9 in22.9 cm | 10 in25.4 cm |
| Width | Not published | ✓ 8.3 in21.1 cm | 9.5 in24.1 cm |
| Length | Not published | ✓ 16.9 in42.9 cm | 17.5 in44.5 cm |
| Unit weight | 66.1 lb30 kg | 54.6 lb24.8 kg | ✓ 92.3 lb41.9 kg |
| Min weight | Not published | 5 lb2.3 kg | ✓ 10 lb4.5 kg |
| Max weight | 66.1 lb30 kg | 52.5 lb23.8 kg | ✓ 90 lb40.8 kg |
| Increment | ✓ 1.1 lb0.5 kg | 2.5 lb1.1 kg | 5 lb2.3 kg |
| Adjustment | spinlock | dial | dial |
| Warranty | Not published | Parts 2 Years | Parts 3 Years |