Spacer Y or N

Do you need a spacer for 11 speed cassette on a Shimano fitting hub?
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Planet X RT58
Cannondale CAAD 10 2012.
Pain.. Is weakness leaving the body.
HATING LIFE-CYCLES FROM 2011
Planet X RT58
Cannondale CAAD 10 2012.
Pain.. Is weakness leaving the body.
HATING LIFE-CYCLES FROM 2011
0
Posts
Planet X RT58
Cannondale CAAD 10 2012.
Pain.. Is weakness leaving the body.
HATING LIFE-CYCLES FROM 2011
No.
Then no
Planet X RT58
Cannondale CAAD 10 2012.
Pain.. Is weakness leaving the body.
HATING LIFE-CYCLES FROM 2011