Rene Herse cranks: Three arms for light weight. A small bolt circle diameter for gearing choices from 24 to 52 teeth. Single, double or triple chainrings. Square taper for fine-tuning your chainline, or fitting around extra-wide chainstays. Net-shaped forged for ultimate strength – the only small-production cranks that pass the most stringent EN ‘Racing Bike’ standard for fatigue resistance. Their beauty is the result of superior function.