Brand new Shimano SLX CS-M7100 12 speed cassette 10-51 toothed.
PLEASE NOTE THIS CASSETTE WILL ONLY FIT 12 SPEED SPECIFIC SHIMANO MICROSPLINE REAR WHEELS.
If you are running 9/10/11 speed or SRAM on your wheels this cassette WILL NOT FIT. Please check compatibility with your bike prior to purchase.
Photos are of the actual item you will recieve. NO ORIGINAL PACKAGING, but will be securely packed.
Installation instructions can be downloaded from the Shimano web site.