Extruded and CNC-machined from 6061-T6 aluminum alloy, Zero Cassette Spacer Kits feature a super lightweight minimalist design and provide anywhere from 1 to 10 millimeters of spacing adjustment.
They are compatible with Shimano compatible freehub bodies and are sold in packs of four.
Each pack includes the following spacers:
(2) one millimeter
(1) three millimeter
(1) five millimeter
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