PowerBlock Pro 100 EXP Stage 4 Kit (Up to 100lbs)

Q: Is the Stage 4 Kit compatible with my Pro 100 EXP dumbbells? The Stage 4 Kit requires the Pro 100 EXP Stage 1 (5–40 lbs), Stage 2 Kit (up to 60 lbs), and Stage 3 Kit (up to 80 lbs) to be already in place. It is not compatible with the Elite, Sport, Commercial, or Pro EXP series. If your current Pro 100 EXP dumbbells max out at 80 lbs, this kit completes the system. Delivery is 10–14 days, and Affirm financing starts at about $20/month.

What does the Stage 4 Kit include? The kit includes one pair of expansion weight sets (one for each dumbbell) and purple and black color-coded side rails. Everything needed to expand your existing Pro 100 EXP system to a full 100 lbs per hand is included.

Q: What does the Stage 4 Kit include? The kit includes one pair of expansion weight sets (one for each dumbbell) and purple and black color-coded side rails. Everything needed to expand your existing Pro 100 EXP system to a full 100 lbs per hand is included.

How do I install the Stage 4 Kit? Installation is tool-free and takes minutes: insert the Stage 4 expansion weights into your existing Pro 100 EXP frame, position the color-coded rails properly, and continue using the original selector pin system. No special tools or handle disassembly required.

Q: How do I install the Stage 4 Kit? Installation is tool-free and takes minutes: insert the Stage 4 expansion weights into your existing Pro 100 EXP frame, position the color-coded rails properly, and continue using the original selector pin system. No special tools or handle disassembly required.

Will the dumbbells stay compact at 100 lbs? Yes — the Pro 100 EXP design keeps the same compact footprint throughout the entire weight range. At 100 lbs per hand, the dumbbells remain dramatically smaller than a 100-lb traditional fixed dumbbell and far more space-efficient than the full rack they replace.

$219.00 $306.00

Sku: 504-00186-01

Product variants

Estimated Delivery 10-14 Days

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Description

PowerBlock Pro 100 EXP Stage 4 Expansion Kit (Up to 100 lbs.)

The PowerBlock Pro 100 EXP Stage 4 Expansion Kit is the final upgrade for the PowerBlock Pro 100 EXP Adjustable Dumbbell system, expanding your dumbbells from 80 lbs to 100 lbs per hand. Designed exclusively for users who already own the Pro 100 EXP Stage 1, Stage 2, and Stage 3 sets, this expansion kit unlocks the full 5–100 lb adjustable weight range, providing professional-level resistance in a compact, space-saving design.

Built with the same rugged welded-steel construction and quick-adjust selector-pin system that PowerBlock users trust, Stage 4 delivers the ultimate strength-training solution without the need for an entire rack of traditional dumbbells.

Unlock the Full 5–100 lb Range

The Stage 4 Kit expands your existing Pro 100 EXP system from:

5–80 lbs to 5–100 lbs per hand
Additional weight increments include:
- 90 lbs
- 100 lbs

Ideal for advanced lifters, strength athletes, and anyone looking to maximize their home gym setup.

Designed Exclusively for Pro 100 EXP Owners

Compatible With:

✔ PowerBlock Pro 100 EXP Stage 1 (5–40 lbs.)
✔ PowerBlock Pro 100 EXP Stage 2 (Up to 60 lbs.)
✔ PowerBlock Pro 100 EXP Stage 3 (Up to 80 lbs.)

Not Compatible With:

✘ Elite Series
✘ Sport Series
✘ Commercial Series
✘ Pro EXP Models
✘ Any other PowerBlock adjustable dumbbell system

If your current Pro 100 EXP dumbbells max out at 80 lbs, this expansion kit is designed specifically for your setup.

Quick & Easy Installation

Expand your weight range in minutes without tools or complicated assembly.

How It Works:

Insert the Stage 4 expansion weights into your existing Pro 100 EXP frame.
Ensure the color-coded rails are properly positioned.
Continue using the original selector pin system.
Select your desired weight and start lifting.

Once installed, your dumbbells function exactly the same—just with a heavier weight range.

Color-Coded Weight Identification

Designed for quick recognition during training sessions.

Features:

Purple and black color-coded side rails
Fast visual weight identification
Streamlined transitions between exercises

Built for Serious Strength Training

The Stage 4 Kit provides the final step in your PowerBlock progression, supporting heavy lifting while maintaining the compact footprint that makes adjustable dumbbells so effective.

Benefits:

Supports long-term progressive overload
Eliminates the need for multiple heavy dumbbell pairs
Saves space compared to traditional dumbbell racks
Cost-effective expansion path

What's Included

One pair of Pro 100 EXP Stage 4 expansion weights
- One expansion set for each dumbbell
Purple and black color-coded side rails
Everything required to expand your existing Pro 100 EXP system to 100 lbs per hand

Product Features

Expands Pro 100 EXP dumbbells from 80 lbs to 100 lbs
Completes the full 5–100 lb weight range
Compatible with Stage 1, Stage 2, and Stage 3 Pro 100 EXP systems
Tool-free installation
Durable welded steel construction
Color-coded weight identification
Maintains original selector-pin functionality

Ideal For

Advanced strength training
Heavy compound lifts
Progressive overload programs
Home gym enthusiasts
Powerlifters and strength athletes
Existing Pro 100 EXP users seeking maximum resistance

Complete Your Pro 100 EXP System

With the PowerBlock Pro 100 EXP Stage 4 Expansion Kit, you can fully unlock the complete 5–100 lb adjustable dumbbell system, delivering professional-grade strength training capabilities while saving valuable gym space. Built for durability, convenience, and long-term progression, Stage 4 is the final piece needed to transform your Pro 100 EXP dumbbells into a complete strength-training solution.

Compatibility Note

This expansion kit is compatible only with PowerBlock Pro 100 EXP Stage 1, Stage 2, and Stage 3 systems (5–80 lbs.). Order cancellations and returns may be subject to a 20% processing/restocking fee.

Warranty

Warranty data

Residential Warranty:
5 Years

Commercial Use:
Not intended for commercial applications

FAQs

Frequently asked question

Is the Stage 4 Kit compatible with my Pro 100 EXP dumbbells?
The Stage 4 Kit requires the Pro 100 EXP Stage 1 (5–40 lbs), Stage 2 Kit (up to 60 lbs), and Stage 3 Kit (up to 80 lbs) to be already in place. It is not compatible with the Elite, Sport, Commercial, or Pro EXP series. If your current Pro 100 EXP dumbbells max out at 80 lbs, this kit completes the system. Delivery is 10–14 days, and Affirm financing starts at about $20/month.

What does the Stage 4 Kit include?
The kit includes one pair of expansion weight sets (one for each dumbbell) and purple and black color-coded side rails. Everything needed to expand your existing Pro 100 EXP system to a full 100 lbs per hand is included.

How do I install the Stage 4 Kit?
Installation is tool-free and takes minutes: insert the Stage 4 expansion weights into your existing Pro 100 EXP frame, position the color-coded rails properly, and continue using the original selector pin system. No special tools or handle disassembly required.

Will the dumbbells stay compact at 100 lbs?
Yes — the Pro 100 EXP design keeps the same compact footprint throughout the entire weight range. At 100 lbs per hand, the dumbbells remain dramatically smaller than a 100-lb traditional fixed dumbbell and far more space-efficient than the full rack they replace.

Can I buy the Stage 4 Kit if I don't already own Stages 1, 2, and 3?
No — the Stage 4 Kit is an expansion only. You must already own (or simultaneously purchase) the Stage 1 Pro 100 EXP set along with the Stage 2 and Stage 3 expansion kits before the Stage 4 Kit will function with your system.