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Note to our Great Customers: 
Update on our Shopping Center: 7 Mile Cycles is not being torn down, moving or closing its doors! Two new buildings are going to built in the same center that we are in and we will be moving into an all new space sometime in 2025!
We are very excited to see this project come together and look forward to our ALL NEW store at the corner of Higgins & Arlington Heights Road!
Click here to see the proposed development!
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BOX Four Prime 9 Wide Rear Derailleur
$64.99
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.
BOX One Prime 9 X-Wide Rear Derailleur
$184.99
The Box One Prime 9 Rear Derailleur takes the advantages of our legacy 9-speed drive-train but adds the advancements of a modern 1 by; a fully adjustable Tri-Pack Clutch, and an x-wide cage optimized for an 11-50T cassette. Forged construction steps up the durability and performance to an unparalleled level. Suited for the most demanding terrain.
BOX Three Prime 9 X-Wide Rear Derailleur
$79.99
The Box Three Rear Derailleur simplifies the features found on the Prime 9 Box One and Two rear derailleurs making for a fully featured wallet friendly rear derailleur. Including a Limited Slip Clutch, Sealed bearing pulleys and a solid construction Box Three Rear derailleurs are compatible with 11-46 and 11-50t derailleurs making it one of the most versatile derailleur offerings for Prime 9.
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