Cirrus BodyFloat 2.1 Suspension Seat Post
LARGE (200-260 LBS)
MEDIUM (150-200 LBS)
SMALL (100-150 LBS)

Cirrus BodyFloat 2.1 Suspension Seat Post

Sizes Available *
Included Shim Options

Current stock: 0
  • CNC machined from high strength aluminum alloy
  • Half a pound heavier than traditional seat post
  • Great for "taking the edge off" hard tailed bikes (perfect for ebike conversion because of large triangles)
  • Also a perfect replacement for chinese ebikes sub-standard suspension systems
  • Seat post length: 350mm (14 inch)


We are happy to announce our newest product the Float seat post which we like better for ebikes than the Thudbuster seat post. We like how innovative and high performance this post is. 


It performs wonderfully, and is available in 3 different spring load levels.

Available in 3 sizes for 3 different sizes of riders, just leave an order comment for the size you want when checking out.

  • Small 90-160 pounds (Purple springs)
  • Medium 140-210 pounds (Black springs)
  • Large 180-250 pounds (Orange OR gray springs)

We have them in stock 27.2 but can provide shims to fit any seat from 27.2 to 31.6mm so please just put in the product notes if your seat post is another size than 27.2mm wide and we will send you the appropriate shim kit at no extra cost (please be aware that we only have 31.6mm shims and any other sizes may add a week or two).

The Float seat post is made of highest quality materials. The Float Post’s primary links are milled with aircraft grade 6061AL aluminum. Stainless hardware, Igus bushings, and urethane top/bottom-out elastomers complete the build. The Wraps are a custom built Spandura or Neoprene cover.

3 Reviews

Jim Strobl May 13th 2018


Cirrus 2.1 medium user, Just incredible!!! feels like a different bike, can't believe how comfortable the ride is now. Can easily ride 30% more and building. What a great product.

William Maurey Mar 8th 2018


Does Luna stock multiple sizes of this... that is what is the spring type? S, M, or L as described?

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