
Features the Power Torque System
- new for 2011. The perfect coupling between central pin & pedal crank is ensured thanks to the particular geometry of the two components; this solution also makes it possible to eliminate the potential play between the different materials. Key
Features: Full-carbon unidirectional-multidirectional cranks. Light alloy fixing bolts & nuts. Light alloy chainrings with ESP Actuation System (Enhanced Shifting Performance). Chainrings with hard anodisation treatment. 8 shift pins on the large chainring for great shifting under pressure. Eleven speed chainring design. Available in both 53/39T & 52/39T chainrings, please select sub options carefully.. This new system requires the specific Power Torque BB. Weight: 705g (Manufacturer claimed).