The new XT cassette has pins that extend rearward to catch a chain before it damages spokes in the event of an over shift.  |  Photo: Shimano
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The new XT cassette has pins that extend rearward to catch a chain before it damages spokes in the event of an ...
The new XT cassette has pins that extend rearward to catch a chain before it damages spokes in the event of an over shift.  |  Photo: Shimano
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