Sale $ 120.69 $141.99
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box-two-prime-9-rear-derailleurs, The Box Two Prime 9 Rear Derailleur is very similar to the Box One version however, to be more wallet friendly, it offers a non adjustable Tri-Pack(TM) Clutch, bushing pulleys and some muted finishes. Box Two rear derailleurs are still optimized for 11-50t cassettes and offer durability and performance for the most demanding terrain, just at lower price!IMPORTANT NOTES Prime 9 Technology(TM)View Prime 9 Drivetrain Compatibility ManualHow is the Ebike variant different?View Prime 9 Comparison ChartView Prime 9 E-Bike Comparison ChartWhy Prime 9?