Shimano CS-HG400 Cassette 11-40 8 Speed Acera Box Pack the Shimano Ultegra BR-R8170 Hydraulic

the Shimano Ultegra BR-R8170 Hydraulic Disc Brake Caliper offers optimised dosing

6mm stack height (sole thickness) for a closer connection to the pedal

paired with a knurled sleeve to ensure a secure preload

providing great visibility for daytime riding

Shimano CS-HG400 Cassette 11-40 8 Speed Acera Box Pack the Shimano Ultegra BR-R8170 HydraulicThe Shimano CS HG400 cassette for 8 speed shifting systems is suitable for a wide range of bike types and allows fast, reliable gear changes. With its large gradation, the version with 11 40 teeth also provides a suitable gear for easy mastering of climbs. Typically Hyperglide, the specially shaped sprockets feature a special tooth profile as well as specifically positioned climbing aids, which optimize the chain retention during the shifting process.