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Shimano Ultegra R8000 Chainrings (34T, 36T, 39T)

Teeth
Hollow forged chainrings for Ultegra FC-R8000 cranksetwith 110 mm BCD and 4-arm spider. The chainrings are hollow to save weight and drastically improve stiffness and aerodynamics. They ensure optimum power transfer and improved shifting performance.

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