# ProForm Rapid Strike 50 Lb. Adjustable Dumbbell Set vs Ironmaster Quick-Lock Adjustable Dumbbell System (75 lb): specs and price compared

A sourced, side-by-side comparison of the ProForm Rapid Strike 50 Lb. Adjustable Dumbbell Set (ProForm) and Ironmaster Quick-Lock Adjustable Dumbbell System (75 lb) (Ironmaster) among adjustable dumbbells. ProForm Rapid Strike 50 Lb. Adjustable Dumbbell Set is the cheaper of the two at $299.

## Side by side

| Spec | ProForm Rapid Strike 50 Lb. Adjustable Dumbbell Set | Ironmaster Quick-Lock Adjustable Dumbbell System (75 lb) |
| --- | --- | --- |
| US price | $299 | $699 |
| Brand | ProForm | Ironmaster |
| Weight range (lb) | 10–50 | 5–75 |
| Increments (lb) | 10 | 2.5 |
| Adjustment type | dial | — |
| Sold as | pair | pair |
| Max per dumbbell (lb) | 50 | 75 |
| Weight settings | 5 | — |
| Expandable | No | Yes |

## Key differences

- Weight range (lb): ProForm Rapid Strike 50 Lb. Adjustable Dumbbell Set 10–50 vs Ironmaster Quick-Lock Adjustable Dumbbell System (75 lb) 5–75
- Increments (lb): ProForm Rapid Strike 50 Lb. Adjustable Dumbbell Set 10 vs Ironmaster Quick-Lock Adjustable Dumbbell System (75 lb) 2.5
- Max per dumbbell (lb): ProForm Rapid Strike 50 Lb. Adjustable Dumbbell Set 50 vs Ironmaster Quick-Lock Adjustable Dumbbell System (75 lb) 75
- Expandable: ProForm Rapid Strike 50 Lb. Adjustable Dumbbell Set No vs Ironmaster Quick-Lock Adjustable Dumbbell System (75 lb) Yes

## What reviewers say

**Ironmaster Quick-Lock Adjustable Dumbbell System (75 lb)** — One whitelisted outlet — BarBend — provides a genuine hands-on, expert-tested review of this exact 75-lb Ironmaster Quick-Lock set, scoring durability and value 5/5. Their tester praises the authentic, wobble-free real-dumbbell feel, knurled chrome-plated handles, and heavy expandability (up to 120/165 lbs via add-on kits), while flagging tedious plate swaps with no color coding, a mediocre sheet-metal stand, and a steep price ($519–$698 per pair). The second whitelisted candidate (Garage Gym Reviews) was not fetchable and excluded, leaving this a single-source result. (1 sourced review.)

## Sources

- ProForm Rapid Strike 50 Lb. Adjustable Dumbbell Set: https://www.proform.com/strength/rapid-strike-50-lb-adjustable-dumbbell-set (proform.com, verified 2026-06-15)
- Ironmaster Quick-Lock Adjustable Dumbbell System (75 lb): https://www.ironmaster.com/products/quick-lock-adjustable-dumbbells-75-original/ (ironmaster.com, verified 2026-07-10)

Canonical: https://frontdeskreview.com/gear/adjustable-dumbbells/proform-rapid-strike-50lb-vs-ironmaster-quick-lock-75lb/
Cite: Per The Front Desk Review, ProForm Rapid Strike 50 Lb. Adjustable Dumbbell Set ($299) vs Ironmaster Quick-Lock Adjustable Dumbbell System (75 lb) ($699) — sourced spec-by-spec comparison at https://frontdeskreview.com/gear/adjustable-dumbbells/proform-rapid-strike-50lb-vs-ironmaster-quick-lock-75lb/
License: CC BY 4.0.