Box's Prime 9 Technology is a counter-intuitive philosophy based on the less is more theory. It embraces range without adding complexity. The outcome is fewer parts, reduced weight, and increased durability.
- Prime 9 technology offers the same range as a 12-speed drivetrain, with fewer gears to shift through
- Fewer parts, reduced weight, and increased durability
- Prime 9 drivetrains significantly reduce the chain angle in the lowest gears, allowing the chain to run straighter across all gears, increasing the life of the chain and cassette
- The 2-piece Single-shift lever is a sound choice for e-bikes
- The Prime 9 chain is compatible with modern narrow/wide chainrings, and resists stretching over time, and decreases wear on the cassette and chainring
- The x-wide rear derailleur features a limited slip clutch, which engages instantly with constant torque for less chain slap, better chain engagement and no dropped chains
- The Sunrace CSM983 11-50t cassette offers ultra-wide ratio with consistent progressions
- Group Weight: 1450g
- Shifter: Box 2 Prime 9 Single Shift - 140g
- Rear Derailleur: Box 2 Prime 9 X-Wide - 320g
- Chain: Box Prime 9 - 310g
- Cassette: SunRace CSM983 11-50 - 680g
Manufacturer BOX
Model BOX Two Prime 9 Groupset
Group Weight
1450g
Box 2 Prime 9 - 140g
Box 2 Prime 9 - 320g
Box Prime 9 - 310g
SunRace CSM983 11-50 - 680g
11-13-15-18-22-28-34-42-50
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.
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