Shimano CS-HG400 Cassette 11-40 8 Speed Acera Box Pack the warning light remains flashing

the warning light remains flashing

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

paired with a knurled sleeve to ensure a secure preload

Matches the new 105 Di2 R7100 group

Shimano CS-HG400 Cassette 11-40 8 Speed Acera Box Pack the warning light remains flashingThe 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.