Major Fitness Weight Stack Pin Extender

Major Fitness Weight Stack Pin Extender

Push past your limits.
Need more weight for your toughest sets? The Major Fitness Weight Stack Pin Extender lets you go beyond the default resistance of your built-in stack—adding up to 130 lbs of additional load using standard Olympic weight plates. Designed for serious lifters chasing progressive overload, this compact attachment expands your machine’s potential without taking up extra space.

Key Features

• Add Up to 130 lbs of Extra Resistance: Extend your built-in weight stack with Olympic plates for heavier training sessions.

• Precision Steel Construction: Built from durable steel for long-term reliability under heavy use.

• Quick Pin-In Design: Easily insert the extender into your selector stack and start loading plates instantly.

• Smart Storage: When not in use, attach it to the top of your guide rod for a clean, organized setup.

• Compatible Models: Fits B52 Pro and F22 Pro machines.

  • Also works with B52 Standard and F22 Standard models if you’ve installed the Weight Stack Set upgrade.

Overview

The Weight Stack Pin Extender is perfect for users who’ve maxed out their built-in resistance but want to keep progressing. Simply slide the extender pin into your existing weight stack selector, load your Olympic plates onto the 8" post, and unlock up to 130 lbs of additional resistance for compound moves like lat pulldowns, cable rows, and triceps pushdowns.

Compact, easy to install, and engineered for seamless performance—this accessory helps you keep progressing without replacing your entire setup.

Specifications

• Length: 24.4″

• Width: 10.2″

• Weight (Single): 8.1 lbs

• Weight (Pair): 20.7 lbs

• Weight Post Length: 8″

• Material: Steel