The Box One Prime 9 Rear Derailleur takes the advantage of BOX's legacy 9-speed drivetrain but adds the advancements of a modern 1x; a fully adjustable Tri-Pack(TM) 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.
- Designed for aggressive terrain
- Adjustable Tri-Pack™ Limited Slip clutch
- Precision sealed bearing pulleys
- Carbon-nylong composite knuckle
- Pivot-Tech™ cable stay
- Durable 3D forged linkages
- Forged inner and outer cage
- Compatible with standard derailleur hangers (non-direct mount)
Manufacturer BOX
Manufacturer Part Number BX-DR1-P9AXWC-BK
UPC 639266097228
Model BOX One Prime 9 Rear Derailleur
Rear Derailleur Style Mountain
Largest Cog
50
Rear Der/Shifter Compatibility
BOX Prime 9
Rear Derailleur Mount Type
10x1 Standard
Drivetrain Speeds
9
Chain Wrap Capacity (teeth)
39
Cage Length
Long
Color
Black
Designed for ebike
Yes
Usually Ships in 2-3 Days
Please Note: This product is usually available for shipment within 2 business days for orders placed before 3pm EST, Monday through Friday or within 3 business days for orders placed after 3pm EST, Monday through Friday. Contact for in-store availability, not all items are available for immediate pickup. If we are unable to meet these time frames due the rapid changes in revolving inventory you will be contacted via email. We do not partial ship orders, the delivery time of your order is determined by the item on your order with the longest lead time. If your order is time sensitive we encourage you to contact us for up to the minute product availability and ship times to verify that we can accommodate your needs. Refer to our Shipping Terms for more information.
Please Note: This product is usually available for shipment within 2 business days for orders placed before 3pm EST, Monday through Friday or within 3 business days for orders placed after 3pm EST, Monday through Friday. Contact for in-store availability, not all items are available for immediate pickup. If we are unable to meet these time frames due the rapid changes in revolving inventory you will be contacted via email. We do not partial ship orders, the delivery time of your order is determined by the item on your order with the longest lead time. If your order is time sensitive we encourage you to contact us for up to the minute product availability and ship times to verify that we can accommodate your needs. Refer to our Shipping Terms for more information.