This brilliant components is the result of over the top thinking by E*Thirteen engineers to produce a lighter, stiffer, stronger and more reliable crankset. It features a 30mm spindle, which provides a rigid base for the system, while its proprietary P3 Connect Polygon interface creates a more robust, reliable, impact-resistant spindle-arm junction. This is the ultimate choice of upgrade for off-road thrill-seekers who want to maintain a powerful pedal stroke on every ride, from this light set of cranks.