Spoke Large Star Chair Swivel Base - Silver

Charles jacobs 25" aluminium 5 spoke replacement office chair base. Suitable for all standard 11mm...

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The Spoke Large Star Chair Swivel Base is an ideal solution for office furniture enthusiasts and professionals looking to repair or upgrade their existing seating. This heavy-duty, 25-inch aluminium base provides a robust and aesthetically pleasing alternative to standard plastic bases, offering enhanced durability and a sleek silver finish. While it is engineered for wide compatibility, users should note that this kit does not include castor wheels or gas lift components, requiring you to reuse your existing hardware or purchase these parts separately.

All features

ColourSilver
Model Part Number156872
BrandSymple Stuff

Extended Product Information

FAQs

Does this include the gas lift piston?

No, this product is the base only. You will need to use your existing gas lift.

Can I use my old wheels with this base?

Yes, provided your old wheels are the standard 11mm push-fit type.

Is this base suitable for heavy-duty use?

Yes, the hard-wearing aluminium construction is designed to be more durable than standard plastic bases.

What is the diameter of the base?

The base has a diameter of 25 inches.

How do I remove my old office chair base?

Usually, you can pull the base off the gas lift cylinder by turning the chair upside down and tapping the center of the base with a rubber mallet.

Troubleshooting

The gas lift does not fit into the hole of the base

Verify that your gas lift is a standard 50mm diameter. If it is larger, it will not seat properly in this base.

Old castors are loose or fall out

Ensure your castors have an 11mm stem. If your old castors are of a different size or are threaded (not push-fit), they will not be compatible.

Chair is wobbly after assembly

Ensure the base is pushed firmly onto the gas lift and that all five castor wheels are fully clicked into their sockets.

Pros and Cons

Pros

  • High-quality, hard-wearing aluminium material
  • Sturdy 25-inch diameter for excellent balance
  • Compatible with most standard office chair hardware
  • Easily replaces brittle or broken plastic bases
  • Clean, professional silver aesthetic

Cons

  • Does not include castor wheels or gas lift
  • Requires manual assembly of your existing chair components
  • Limited to push-fit style castors only

Setup, Compatibility & Care

To install this base, ensure your chair is placed on a flat, stable surface. You will need to detach your existing chair seat and mechanism from your current gas lift, then pull the old base off the gas lift piston. If the piston is stuck, a light tap with a rubber mallet may be required.

Compatibility Checklist:

  • Gas Lift: Must be 50mm in diameter at the bottom connection.
  • Castors: Must be 11mm diameter push-fit stems.
  • Maintenance: Periodically check that your castor stems remain free of debris (like carpet fibers) to ensure smooth rolling. Since the base is aluminium, simply wipe it down with a damp cloth and a mild detergent to keep it shining; avoid harsh acidic cleaners that could mar the silver finish.