7″ Gas Lift Black
Casing 7″ (180mm) extends To 12″ (310mm)
Fits All Standard 5 Spoke Office Chair Bases 5 Spoke Office Chair Bases (We sell these too)
Heavy Duty Factory certified to 150Kgs
Diameters Are 50mm (tapered to fit) At Chair Base And 28mm (tapered to fit) At Seat Mechanism
Comes with warranty
Watch our quick how-to guide today on replacing your office chair gas lift cylinder
Delivery Information
Free UK delivery is UK Mainland only at this time. (Excluding all Islands and Scottish Highlands). For orders outside of the UK mainland please email us for us to quote
Free UK delivery for large furniture items (eg. desks) is 5/7 working days.
If you would like our Fast Tracked service – please email us for a quote by clicking here
For most items under one kilo we ship via Royal Mail.
Otherwise we use a courier service (Interlink or Yodel). For furniture we use a two man delivery team or tail lift wagon which takes 7 working days. Your items are usually shipped next working day of your payment clearing.
Standard delivery is to main entrance of the delivery address. Other options including delivery to room of choice, install and build are available for an additional fee; please contact us for more details if required.
Some deliveries may be palletised to reduce the potential of transit damage and concur with reduced handling rules. If your delivery address has any access restrictions please contact us prior to ordering
Simon T. (verified owner) –
My office chair developed a sinking feeling, but rather than add it to landfill I decided to seek out a repair option. I found BiMi via Google and after watching their videos removed the old cylinder…..with help of a hammer! BiMi provided excellent help and advice via videos and emails….The replacement cylinder was quickly identified and dispatched. I added a bit of grease to the points where it interfaces and now have a chair which is as good as new, for a fraction of the price of a replacement. Not only that I have avoided adding to landfill! Brilliant job and thank you BiMi 🙂
Anonymous (verified owner) –
Very easy to fit once the old one had been removed. So far, so good and has extended the life of my office chair. (Old defective gas lifts can be tough to remove – I needed to use a 12 inch Stilson wrench, a 2lb club hammer and a lot of force – there are a couple of good tutorials on YouTube showing how to do this.)
David Williams (verified owner) –
It fits and is working
Steve Johnson (verified owner) –
The chair lift fitted and works perfectly – no more sinking feeling! The replacement lift from BiMi was the cheapest I found and was delivered very quickly. One fully satisfied customer
Chris (verified owner) –
Easy to select and order the right part, which came vey promptly. The instruction video was useful, but a certain amount of strength is required for the disassembly. Putting it back together is absolutely straightforward.
I have already recommended BiMi to friends.
Trevor (verified owner) –
No problem in fitting and item as described. If it ever needed replacing I would purchase the next height. Delivery prompt. Only time will tell on durability but have no reason to doubt quality.