Campagnolo Super Record Carbon Ultra Torque TI 12 Speed Chainset , Black, 172.5 mm 50-34T

The Super Record 12 x 2 Speed crank set: An intense concentration of innovation that results in the ideal possible stiffness and precision in derailing, whilst providing a dedicated aerodynamic design. The carbon fibre Super Record 12 x 2 Speed crank set has been made lighter on the inside through Campagnolo Hollow Technology, which uses the Ultra-Torque bracket system with a titanium axle to transfer all of the force the athlete applies to the pedal to the drivetrain. The Super Record 12 x 2 Speed crank set can be installed on any type of frame, whether or not it is being used with disc brakes because it optimises the chain line on the frame with a rear hub flange measuring 130, 135 or 142 millimetres, without affecting the Q factor, which remains constant at 145.5 millimetres thanks to the hand crank design. The use of ceramic Cult bearings leads to obtaining the smooth ride that the Campagnolo brand is known for. The innovative design of the outer chain ring ensures faster, quieter derailing owing to the contoured pin. The symmetrical design of the inner chain ring teeth allows improved stability with chain crossovers. The double wheel sizing standards (112 and 145 millimetres) combined with the eight fixing screws, optimises weight and stiffness through the increased use of carbon fibre. The varying number of pins for each of the three chain ring combinations (34/50, 36/52, 39/53) facilitates upshifting due to the optimised free strokes associated with each combination. The special drains on the inside of the outer chain rings optimise performance when downshifting in dead spots.