Shimano 105 R7000 Front Rear Brake Calipers Road The new BR-R8000 offers a very sleek design, with narrower gaps between the arms. The wider clearance makes it compatible with larger tire sizes such as 28C. The stabilizer between the axles reduces deformation and improves the braking efficiency, offering a clear contact feeling with balanced rigidity, weight and stopping power. Features: Use: Road Group: 105 Model: BR-R7000 Material: Aluminium Brake Arm Length: ~51 mm Option: Front / Rear / Set (F+R) ***These are OEM Shimano Parts, Brand new, Never Installed on Bike, Never used in any way, just NOT in retail packaging.***