Shimano SLX M7100 12-speed cassette, 10-51t

Features:

Smooth shifting performance provides confidence to enjoy any trail
Light and stiff construction allows faster acceleration and increased chain security
HYPERGLIDE+ technology provides better chain engagement, stronger retention, and smoother pedaling
Shimano Micro Spline body that features smaller and more widely distributed splines to limit cog damage on freehub
Specifications:
Range: 10-51t (10, 12, 14, 16, 18, 21, 24, 28, 33, 39, 45, 51t)
Cassette Body Type: Shimano Micro Spline
Drivetrain Speeds: 12