REP Fitness REPx PÉPIN™ FAST Series™ Adjustable Dumbbell - DBS-7000-085

REP Fitness REPx PÉPIN™ FAST Series™ Adjustable Dumbbell - DBS-7000-085

REP has innovative minds on our Colorado-based engineering team. At the same time, we sometimes run across other inventors doing awesome things. These are our people. We want to support them. That's why we created the Inventor Series: a special line of products invented by small, outstanding inventors from around the world. We collaborate with the best of the best. And then work closely alongside them to optimize their ideas, using our resources and knowledge of the home gym market. The goal is to simultaneously lift up other gym equipment inventors, while making their amazing products more accessible to more people. It's a win-win-win. The REP® x PÉPIN™ FAST Series™ adjustable dumbbell is a partnership between REP and Canada-based Pépin. 

Meet the REP x PÉPIN™ FAST Series™ adjustable dumbbell. These premier adjustable dumbbells are heavier and more compact than most adjustable dumbbells on the market. An adjustable dumbbell that starts at 10lbs and can go up to 125lbs at only 18.3” long is pretty much unheard of. All steel, CNC-cut plates with a black powder coating allow the dumbbells to be incredibly compact, very accurate, and look and feel great. In addition, they’re extremely durable. Both the dumbbells and the cradles are constructed entirely of metal (with UHMW liners to prevent steel-on-steel contact) and have been extensively drop-tested from every angle. The steel cradles allow you to rerack the dumbbells without worrying about being overly gentle, as would be the case if the cradles were plastic.

Features

HEAVY AND COMPACT

Dimensions

What our Experts Think

• Heavy-Duty Performance: Delivers up to 125 lbs per dumbbell, ideal for serious lifters.

• Compact Design: Measures just 18.3" in length, saving valuable gym space

• Quick Adjustments: Switch weights in 10 lb increments using a magnetic pop-pin; includes 2.5 lb micro-plates for finer adjustments.

• All-Metal Construction: Features CNC-cut steel plates and UHMW-lined cradles for durability and protection

• Expandable System: Start with 85 lbs and upgrade to 105 lbs or 125 lbs as your strength progresses.

• Premium Grip: Nickel-plated, volcano-style knurled handles (34mm diameter) ensure a secure hold.

Q&A

Q: What is the REPx PÉPIN™ FAST Series™ Adjustable Dumbbell?
A: A premium adjustable dumbbell co-designed with renowned strength coach Simon PÉPIN, featuring ultra-fast, one-hand adjustments and a pro-grade feel.

Q: What weight range does it offer?
A: Adjustable from 5 to 85 lbs in 5-lb increments, making it perfect for progressive strength training at any level.

Q: How fast is the adjustment system?
A: The FAST Series™ system allows instant, one-handed changes—no twisting or docking, just slide and lift.

Q: Is it built like traditional dumbbells?
A: Yes, it’s engineered with balanced steel construction, knurled handles, and no bulky casing—for a feel like fixed dumbbells.

Q: Why choose the REPx PÉPIN™ FAST Series?
A: Combines elite-level performance, unmatched speed, and compact versatility—ideal for serious lifters in limited spaces.

Maintenance Tips

• Clean After Use: Wipe down handles and weight plates with a dry cloth to prevent moisture buildup.

• Inspect Selector Dial: Check for smooth, accurate adjustments; clean debris from mechanism weekly.

• Avoid Impact: Do not drop dumbbells—impacts may damage internal parts or affect weight selection.

• Store Safely: Place on the included base or a flat surface to maintain alignment and longevity.

• Lubricate If Needed: Use silicone spray on moving parts for smoother operation if resistance occurs.

• Monitor Wear: Monthly check for cracks, loose parts, or selector malfunctions.