Box One Quantum Drivers downhill Did you know that these

Did you know that these stylish creations are also the official number plate of the UCI/GSX Super Cross Series

solid plates

while the 12-50T E-Bike version features slightly adjusted gear spacing optimized to handle the unique torque and load demands of E-MTB riding

The Box Two 7-speed Downhill cassette gives you the high range without the weight and bulk of the low

We flanked the high-density casing with a tightly packed hoop of aramid fibers

Box One Quantum Drivers downhill Did you know that theseEach Quantum driver is a complete, one piece Chromoly driver supported by three large roller bearings. Inside the driver is six pawls, each with two teeth that engage a 60 tooth ratchet ring, which means the hub has just 6 degrees of engagement. Please note, these drivers are designed only for use with Quantums and are not compatible with other hubs.