SWI is driven by a mission to produce the most advanced bespoke carbon bicycle frames. The only brand hand-building unishell carbon monocoque frames customised to match the rider’s weight and power output, every SWI frameset is built upon 3 pillars: engineering mastery, craftsmanship & extreme attention to detail. Originating in Ticino, Switzerland , SWI now designs and handbuilds it’s own framesets in Bassano Del Grappa, at the heart of the Veneto region in Italy.

A Single Uninterrupted Carbon Shell 

Unlike traditional custom frame builders who glue tubes and lugs together, or the mass market modular monocoques, SWI utilises a unique patented, unishell monocoque construction process which uses a single mould and produces a frame as a single uninterrupted carbon shell. This results in a lighter, stiffer, stronger and more precisely aligned frame than is possible with bonding.