Ironmaster
Ironmaster Quick-Lock 75 lb Set
Screw-lock pair published at 5–75 lb34 kg each in 2.5 lb1.1 kg increments, 6.7 in17 cm square × 14.5 in36.8 cm long at 75 lb34 kg, with a lifetime warranty and add-on kits to 120 or 165 lb74.8 kg.
Spec-based page. We did not test this product. Source: manufacturer page.
Who it's for
Lifters who want Ironmaster's published cast-iron Quick-Lock 75 lb34 kg set with optional expansion beyond 75 lb34 kg.
Who should skip
Anyone who wants a cradle-dial change without adding or removing plates via locking screws.
| HeightAssembled height versus your ceiling. | 6.7 in17 cm |
|---|---|
| Width | 6.7 in17 cm |
| Length | 14.5 in36.8 cm |
| Unit weight | 75 lb34 kg |
|---|---|
| Min weight | 5 lb2.3 kg |
| Max weight | 75 lb34 kg |
| Increment | 2.5 lb1.1 kg |
| Adjustment | quick-lock screw |
|---|---|
| Warranty | Lifetime warranty |
Source: manufacturer spec sheet, checked 2026-10-14. How we measure
Ironmaster lists 5–75 lb34 kg per dumbbell in 2.5 lb1.1 kg increments.
The set includes two handles, four locking screws, 24 five-pound plates, and four 2.5 lb1.1 kg plates; empty handles are 5 lb2.3 kg and each locking screw is 2.5 lb1.1 kg for a 10 lb4.5 kg starting loaded handle before plates.
At 75 lb34 kg the dumbbell is 6.7 in17 cm square × 14.5 in36.8 cm long (9 in22.9 cm long at 20 lb9.1 kg), with 1.25 in3.2 cm grip diameter and 6.5 in16.5 cm inside grip width, and a lifetime warranty.
Nearby specs
| Spec | Ironmaster Quick-Lock 75 lb 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 | ✓ 6.7 in17 cm | 9 in22.9 cm | 10 in25.4 cm |
| Width | ✓ 6.7 in17 cm | 8.3 in21.1 cm | 9.5 in24.1 cm |
| Length | ✓ 14.5 in36.8 cm | 16.9 in42.9 cm | 17.5 in44.5 cm |
| Unit weight | 75 lb34 kg | 54.6 lb24.8 kg | ✓ 92.3 lb41.9 kg |
| Min weight | 5 lb2.3 kg | 5 lb2.3 kg | ✓ 10 lb4.5 kg |
| Max weight | 75 lb34 kg | 52.5 lb23.8 kg | ✓ 90 lb40.8 kg |
| Increment | ✓ 2.5 lb1.1 kg | ✓ 2.5 lb1.1 kg | 5 lb2.3 kg |
| Adjustment | quick-lock screw | dial | dial |
| Warranty | Lifetime warranty | Parts 2 Years | Parts 3 Years |