Shimano Ultegra BR-R8170 Hydraulic Disc Brake Caliper GRAVEL With its overlapping handle and

With its overlapping handle and integrated ABS Flex Hose

Generous cleaning channels guide mud and debris away from the traction point

smoothest shifts by HYPERGLIDE+

reliable shifting with high chain security

57mm chain width

Shimano Ultegra BR-R8170 Hydraulic Disc Brake Caliper GRAVEL With its overlapping handle andAll around improved, the Shimano Ultegra BR R8170 Hydraulic Disc Brake Caliper offers optimised dosing, quieter braking performance and extremely simplified maintenance. A faster gripping initial braking force always gives the feeling of full control, while a 10% increase in brake pad spacing allows for a significant reduction in noise during braking, despite a flatter overall construction. When paired with the RT MT900 brake disc rotor (sold