The Box One Quantum BMX Race Hubset has been a cool 7 years in the making. The end result is a super tough hub with fewer dead spots and less drag than many other hubs out on the track.

To achieve this, the rear Quantum hub uses the type of one-piece driver commonly found on “freestyle” hubs. Each hubset includes a one-piece, 16-tooth driver supported by three large, roller bearings. Inside the driver are six pawls, each with two teeth that engage a 60-tooth ratchet ring, meaning the hub has just 6 degrees of engagement.

“The end result is a super tough hub with fewer dead spots and less drag than many other hubs out on the track”

The Quantum front hubs are available with 20mm axles only, but the rears can be easily converted between 10, 15 and 20mm axles. Each set includes a front and rear 20mm set-up, with additional spacers included. Optional 10mm and 15mm axle kits are sold separately.