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![](https://www.parti-du-velo.fr/wp-content/uploads/2017/05/cassette-velo-route-drivetain-bbb-shimano-10v.jpg)
Cassette velo
Source google image: http://cdn1.materiel-velo.com/24553-thickbox_default/cassette-velo-route-drivetain-bbb-shimano-10v.jpg