High Strength 110BCD Chainring 53 39T for 105 R7000 R8000 R9100 Road Bike Setup
Good compatibility, for 110BCD cranks. 2 chainrings(39T+53T) or (50T +34T ). High strength Aluminum 7075-T651. 53-39T，50-34T Chain Wheel for options. Material: AL7075. Material:al7075. Size: 53-39T.