Shimano slx m7000 11 speed 11 42t cassettethe newslx m7000 11 speed hyperglide cassette utilises a lighter aluminium spider construction with aluminium and steel cogs providing an extremely wide gear range whilst minimising weight ride anywhere with smooth and precise gear changes features number of sprockets11 13 15 17 19 21 24 27 31 35 40 11 13 15 17 19 21 24 28 32 37 42 dyna sys technology offers smooth and precise gear changes and a close ratio gear range for optimal cadence optimal b