8mm Original 2″ GymPin


Designed to allow additional weight plates to be added to the side of your cable machine weight stack.

Use this to make those machines challenging again and give your workout another dimension.

This 8mm (5/16″) GymPin is designed to be used with a weight stack that uses an 8mm selector pin.

Suitable for 2″ Olympic plates that have a 2″ (50.8mm) hole in the middle.

Used by IFBB professional bodybuilders, powerlifters and strength athletes across the globe.

Proven to hold up to 60kg.

Check out our products in action @gym_pin

8mm Original 2″ GymPin


The 8mm (5/16″) Original GymPin Cable Stack Extender

Designed to be a universal fit for all pin loaded machines that use an 8mm selector pin, you should have no problems adding weight to your chosen machine and adding tissue in the process. Manufactured in the UK using the finest quality materials and stringent quality process.

It began with some brilliant British ingenuity, some great craftsmanship and 300 prototypes later, The Original 2″ GymPin was born.

The limitations we found in our local gym were too much. Not enough resistance and certainly not enough to push us to our limits. When we spoke to others on the scene, they were the same. They wanted more from their gym equipment and needed a solution. Now you can build muscle using the kit that you have access to.

Orders are usually dispatched within 1-2 days.

  • Large end – 155mm long, 49.5mm diameter
  • Small end – 102mm long, 8mm diameter (5/16″)
  • 864g each

Proven to hold 60+ kgs of additional weight.

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Be sure to tag @gym_pin in your videos of you crushing some big weights!

Please note: Orders placed (outside of the UK) are excluding VAT, taxes, charges and may be subject to VAT & Duty upon entry into the chosen delivery country.

Additional information

Weight 1 kg
Dimensions 36 × 6 × 6 cm

4 reviews for 8mm Original 2″ GymPin

  1. Brian Kenworthy

    Saw these on Instagram and had to get one. A great product, well made and felt safe to use.

  2. Carl Higgins

    This is just what I needed. Doesn’t weigh much either! Great job GymPin, this stays in my gym bag now 🙂

  3. Melissa Murray

    Great addition to my gym, can’t wait to try other products!

  4. Mia Acaro

    So happy I came across this product online, I ordered one a few weeks ago and both me and my partner were really impressed. Great idea!

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