• Wide range and close step 12-speed XTR M9100 cassette
• 10T lowest sprocket realized by new Micro Spline freehub body construction
• The three largest sprockets are made from aluminum and the next five sprockets are made from titanium, to reduce weight to a minimum
• Beam Spider construction results in a lighter and stiffer cassette
• Hyperglide+: enhanced shifting speed and efficiency allows to pedal continuously while shifting up or down
• Better chain engagement and stronger retention for improved confidence over any terrain
• Weight: 367g (10-51T), 357g (10-45T)
