They are aluminium with a layer of carbon... Description - Arguably the best trials handlebars currently available, now even wider for more control! - Extra width, as requested by the Coustellier brothers and Danny Butler. - 31.8mm oversized clamp diameter for increased strength. - Carbon fibre outer construction. - 7075 aluminium core where high stress levels occur. - The distinctive shape of these bars offers an extremely comfortable feel and increased bike control when tilted forwards, or a slightly more 'streety' feel when tilted back. - Combination of aluminium and carbon fibre offers exceptional stiffness and strength, but not with the downside of high weight. - Aluminium inserts to prevent splintering at the ends of the bars. - 30" (760mm) wide. - Clear lacquer over raw carbon-fibre weave and white graphics give a classy finish. - 285g.