SHIMANO Ultegra R8170 Hydraulic Disc Brake Flat Mount Caliper brake caliper is anodized with a beautiful

is anodized with a beautiful gloss black anodized finish

use the AXS mobile app to assign shift actions

In addition to the reach

the T-Type derailleur mounts around the wheel axle itself

Wireless design makes installation easier and offers an untethered ride

SHIMANO Ultegra R8170 Hydraulic Disc Brake Flat Mount Caliper brake caliper is anodized with a beautifulTo the delight of riders and mechanics alike, the new ULTEGRA BR R8170 caliper delivers enhanced modulation, a quieter brake system, and an easier than ever bleed process. The ULTEGRA R8170 disc brake caliper brings a new level of control to the road cycling world with enhanced modulation and a quicker initial braking point. Despite its smaller construction, the system is quieter than ever and easier to maintain FEATURES 10% wider pad clearance