CAMPAGNOLO ATHENA TRIPLE BLACK CHAINSET POWER TORQUE SYSTEM 11 SPEED 1725MM 30-39-52T
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OPTIMAL POSITIONING OF THE BALL BEARING SEAT
Reduces friction to the minimum, reduces mechanical stress, and protects the ball bearings from water and dust to assure consistent performance over time.
OPTIMISED U AND Q FACTORS
Space optimised between ankle and crank - maximum lateral and torsional stiffness.