The ROTOR Aldhu Carbon Crankset Road This is ROTOR lightest road crankset, 549g with 170mm crankarms and 50/34 round chainrings. ALDHU Carbon cranks incorporate Twin Leg-technology, which eliminates power losses caused by spindle torsion. This will give you the best stiffness/weight ratio on the market.  ROTOR chainrings are compatible with Shimano® 11- and 12-speed groups and have an aerodynamic design that improves airflow. The optimised sprocket set allows you to shift accurately in any situation. The new architecture improves structural rigidity, making them very popular with demanding cyclists. If health and performance are important to you, we recommend the Q RINGS oval chainrings. These allow you to pedal more efficiently, maximising the power on the pedals. The load on your knees is also reduced, allowing you to pedal more healthily. CHARACTERISTICS Crank length (mm): 155 | 165 | 170 | 172.5 | 175 Chainring Sizes: 46/34 | 50/34  | 52/36 | 53/39 | 54/42    Spindle:  30mm Q-Factor:  147.5 mm BCD: 110×4 Chainline: 43,9 mm Material:  Carbon  |  Aluminum 7075 T6 CNC Weight w/ (170mm R50/34T): 549 g Frame compatibility: BSA | ITA | BB30 | BB30A | BB86 | BB386 |  BBright | PF30 | PF30A | T47       Group compatibility: Shimano® 2×12 | Shimano® 2×11 | SRAM® 2×11 INCLUDED IN THE BOX Aldhu Carbon cranks 30 mm axle standard black BCD110x4 chainrings oval Q RINGS or round BCD110x4 spider in gloss finish Spacer Set (Optional) ROTOR PART NUMBERS C02-117-13010-0 C02-117-17010-0 C02-117-19010-0 C02-117-20010-0 C02-117-21010-0
