Fits on double crankset with 110BCD - asymmetrical (Shimano Tiagra 4700,105 5800, Ultegra 6800 and Dura Ace 9000)

A new designed chainring with rail collecting the chain easier than traditional pins.

Made in CNC milled alu, in one piece ensuring maximum stiffness and low weight.

50T weighs 120g

52T weighs 137g