Extra Durable hubs have a centerlock interface, 10 degree engagement, and 4 oversized pawls for excellent torque transfer. It's simply a hub that performs and lasts!
Not cheap. The Prologue series is built to last, with a slight weight increase over the Podium Series. If you are looking for your wheels to perform great and want to shave a few dollars from your budget, the Prologue wheels are a great option.