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Shimano SLX CS CS-M7100 12 Speed Cassette 45T / 51T MTB
 
With its BEAM SPIDER construction, the SLX M7100 12-speed cassette shaves weight while increasing SHIMANO's MTB gearing range another gear. Using SHIMANO's new MICRO SPLINE freehub body and HYPERGLIDE+ tooth profile, these 10-45 and 10-51T cassettes deliver advanced shifting performance.
．Advanced shifting performance provides the confidence to enjoy any trail
Pedal continuously while shifting
—HYPERGLIDE+
Lighter and stiffer cassette sprocket construction reduces inertia and increases acceleration
BEAM SPIDER
．Lighter drivetrain set up
10T lowest sprocket realized by new FREEHUB body construction
—MICRO SPLINE
．Wide range