The Renthal Apex combines All Mountain strength, Enduro stiffness and XC lightweight. Unique 240deg handlebar clamps allow much of the stem body material to be removed, whilst retaining the strength and stiffness demanded by modern, wide handlebars. The Apex is fully CNC machined, featuring an oversize centre bore, extensive 3-D machining and external webbing to maximize structural strength and stiffness and minimize weight. Need help deciding on the perfect stem length? Check out our stem length blog that details the different riding characteristics of different stem lengths to help you make the perfect choice. SPECIFICATIONS: Clamp Diameter: 31.8mm Clamp Width: 46mm Steerer Clamp Diameter: 28.6mm Stack Height: 40mm Rise: +/- 6 degrees Weight: 31mm: 106g 40mm: 118g 50mm: 127g 60mm: 136g 70mm: 140g 80mm: 149g