The Crankset without Spider from Hope has been developed over many years, designed using the latest FEA (Finite Element Analysis) tools & endured extensive multi discipline field testing. The outcome is what you see before you, a Forged & CNC machined 7075 series aluminium alloy set of crank arms with a 30mm oversized axle & a unique expanding spline/arm interface system. The versatile spline mount for chainrings & spiders means that you can run either a conventional chainring (single or double) or a direct mounting chainring which means that you can save weight whilst also saving weight & giving a quieter drivetrain with less drag.