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BOX Four Prime 9 Wide Rear Derailleur

BOX Four Prime 9 Wide Rear Derailleur
This item is currently not available.

Details

The Box Four Rear Derailleur is the base of Prime 9 Technology that offers an affordable clutch based 1 by 8-speed derailleur that is simple and light; this makes it a perfect candidate for every entry-level bike that traditionally has a 3 by drive-train that is neither durable nor user friendly.

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