SHIMANO MTB cassette sprockets ALIVIO HG-400 9-speed

Every year, Shimano introduces changes to its components collection, rejuvenating and innovating new groupsets. A completely redesigned Alivio groupset, codenamed M4000 for MTBs and T4000 for trekking bikes, is planned for 2015. Following these changes, the Alivio has strengthened its position against the Acera and Altus and shifted towards a more competitive cross-country focus. Group: Alivio -Closely spaced main chainrings ensure smooth and comfortable pedaling -11-36T specification in addition to 11-25T, 11-28T, 11-32T, 11-34T and 12-36T specifications (11-25T and 11-28T not available on RD-M4000/M3000) -HYPERGLIDE solution -Lightweight construction -Quick and easy installation using the sprocket cassette cover