Most upcycling projects ask you to forget what something used to be. Omri Piko Kahan’s bike frame chairs ask the opposite. The geometry is still unmistakably a bicycle frame, the head tube, the top tube, the triangulated rear triangle, all of it present and accounted for, just oriented sideways and asked to hold a person instead of propel one. Kahan, an industrial designer based in Israel, builds lounge chairs from pairs of retired frames, and the whole point is that the donor material remains fully readable, repurposed without being disguised.
Structurally, the approach is clean and considered. Each frame pair is positioned symmetrically, fork and chainstay ends touching the floor as legs, the top tube running horizontally as an armrest. A slung seat and backrest in leather or canvas complete the form. The result has the relaxed posture of a Barcelona chair and the material honesty of something that was clearly built, not styled.
Designer: Omri Piko Kahan
Bicycle frames are absurdly overbuilt for what Kahan is asking them to do. A modern aluminum road frame is engineered to survive repeated impact loads from a rider pushing 300 watts through rough tarmac, and it does that while weighing somewhere between 1,000 and 1,400 grams. The structural surplus in that kind of engineering is enormous, which is why two of them positioned as a chair frame and asked to support a seated adult is, from a load-bearing standpoint, almost comically within spec. The geometry does the rest. Bicycle frames already resolve forces through triangulated sections, and a lounge chair asks for exactly that kind of lateral and compressive stability.
What Kahan has figured out is the orientation problem. Flip a frame on its side and the existing tube angles don’t automatically produce a useful chair geometry. The fork legs and chainstay ends need to hit the floor at the right height relative to each other, the top tube needs to land at armrest height, and the whole thing needs to produce a seat rake that doesn’t pitch you forward or swallow you whole. The matched top tube angles across both frames in the Cube and Trek build suggest this took real iteration, because they align with a precision that reads as deliberate rather than lucky. Filed fillets at the junctions and a custom setback upper support holding the sling confirm someone was paying close attention to finish quality.
The two builds photographed so far, one pairing a blue Cube road frame with a Trek, another combining a GT Transeo 3.0 with what appears to be a Supreme-branded MTB frame, show how much the donor bikes drive the final character of each piece. The GT build in particular has a longer wheelbase geometry that gives the chair a wider, more reclined stance than the Cube version. Kahan is taking custom orders, with pricing worked out per commission, which makes sense given that no two donor frame combinations will produce the same structural or ergonomic outcome.
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