The
BOX Two Prime 9 X-Wide Multi Shift Groupset brings simplicity, durability, and wide-range performance together for riders who want fewer gears and more adventure. Designed to deliver smooth, consistent shifting across a massive gear range, this 9-speed setup minimizes maintenance while maximizing reliability—perfect for trail riders, commuters, and eMTB enthusiasts alike.
With a smart combination of a wide-range cassette, precision derailleur, responsive shifter, and durable chain, the
Prime 9 system delivers crisp, confident shifts under pressure without the complexity of 12-speed drivetrains. The
X-Wide Multi Shift version allows multiple gear changes in a single stroke, giving riders efficient control over changing terrain. For those running eMTBs or seeking added drivetrain protection, the single-shift option helps prevent bent teeth and broken chains under heavy load.
- Complete performance package – Includes cassette, derailleur, shifter, and chain for a full drivetrain upgrade.
- Wide-range 9-speed design – Offers the climbing power and top-end speed of higher-speed systems without the fuss.
- Multi-shift or single-shift options – Choose the shifting style that fits your riding and power delivery.
- Compatible and versatile – Fits HG-splined Shimano/SRAM 8–10 speed freehubs, so it drops into most existing wheels with ease.
- Built for real-world riding – Durable, low-maintenance components ready for dirt, mud, and miles.
Whether building up a new bike or refreshing a trusted ride, the
BOX Two Prime 9 X-Wide Multi Shift Groupset delivers a powerful blend of simplicity, reliability, and modern performance that keeps your focus on the ride—not the wrenching.