Box Three Prime 9 X-Wide Rear Derailleur for Mountain Bike

IS PRIME 9 A SIMPLER OPTION?

The Prime 9 system offers several advantages over traditional 9-speed setups. For starters, it features the same gear range but with fewer gears, resulting in a simpler and more streamlined system. This translates to an easier setup process and less maintenance required over time. Moreover, all bike shops are already familiar with 9-speed platforms, ensuring seamless integration and support.

IS PRIME 9 MORE DURABLE?

The Prime 9 system is designed with durability in mind. Its straighter chain-line and unique 9-speed chain contribute to enhanced reliability. Additionally, the single-shift option available on E-MTBs, as well as the fewer gears (fewer shifts), help to minimize wear and tear. Importantly, the system features a full steel cassette across all tiers, further reinforcing its long-lasting performance.

DOES PRIME 9 PERFORM BETTER?

The Prime 9 system is optimized for superior performance. By requiring fewer shifts, it enables faster riding, as shifting less means more time spent pedaling efficiently. The system's optimized shift ramps and consistent gear jumps ensure smooth, seamless transitions between gears. Moreover, the lightweight cassette design contributes to an overall lighter and more responsive ride.

RELIABILITY REDEFINED

The Box Three Prime 9 Mountain Bike Derailleur is a testament to reliable performance. Featuring a Slip Clutch, Bearing Pulleys, and a Glass-Nylon Composite Knuckle, it is engineered to keep you riding mile after mile, no matter the terrain.

VERSATILE REDEFINED

The Box Three Prime 9 Bike Derailleurs are designed to seamlessly integrate with a wide range of setups, including E-Bikes and traditional platforms. With compatibility across Box One, Box Two, and Box Three cassettes, ranging from 11-50T Non E-Bike to 12-50T E-Bike, you can find the perfect gearing for any trail.

ENHANCE PERFORMANCE

The Box Three Prime 9 Mountain Bike Derailleur combines the reliability of a modern 9-speed drivetrain with the precision of cutting-edge design. Conquer any challenge with confidence and finesse, as this derailleur delivers the performance you need to dominate the trail.

COMPATIBILITY ASSURANCE

The Box Three Prime 9 speed Derailleur ensures seamless integration with standard mount Derailleur hangers. However, it's important to note that traditional 9-speed systems use a cable pull that is not compatible with Prime 9. Box Prime 9 derailleurs are also not currently compatible with drop bar shifters, but a clamp for our shifters to mount on some 31.8mm drop handlebars is available.

REFINED CONTROL

Bid farewell to guesswork and welcome the smooth, consistent shifting of the Box Three Prime 9 Bicycle Derailleur. Its Limited Slip Clutch ensures constant chain tension, providing you with greater control and more precise shifts, no matter the terrain.

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