This is the world’s lightest steel road bike | 5.42kg of marvellous metal This Yasujiro Svelte weighs just 5.42kg, which we reckon makes it the lightest steel road bike in the world. Yasujiro is the in-house bike brand of tubing manufacturer Tange. This frame is constructed from the brand’s premium double-butted Ultimate tubing. The walls of this tubing are a mere 0.35mm thick (!) at their thinnest point. This ultralight tubing is at the heart of this remarkable bike and we are utterly in love with it.
