Wheels Manufacturing Cassette Spacer NCS-4.5 allows you to run a 7 speed cogs for use on a Shimano 8/9/10 speed freehub body. Simply use your 7 speed cassette and insert this 4.5mm spacers between your cassette. The Wheels Manufacturing cassette spacer is exactly the right size to fill up the space where your nonexistent 8th cog would go.
SPECIFICATIONS:
Includes: (5) 4.5mm spacer
Weight: 9g
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