Shimano Ultegra BR-R8170 flat mount calliper, without rotor or adapter, rear

The Shimano Ultegra BR-R8170 is a professional-grade flat mount calliper, designed to provide superior braking performance without the need for a rotor or adapter. Its sleek design and advanced engineering make it the ideal choice for cyclists looking for precise and reliable braking. Upgrade your bike's braking system with the Ultegra BR-R8170.