Box One Quantum BMX Race Hubset-36H-20mm-Black

The Box One Quantum BMX Race Hubset-36H-20mm-Black has been a labor of love for the team at Box. The end result is a super tough hub with fewer dead spots and less drag than many other hubs out on the track.The 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 Quantum front hubs are available only with 20-mil axles, but the rears can be easily converted between 10-, 15 and 20-mil axles. Each set includes a front and rear 20-mil set-up. Additional spacers included. Optional 10- and 15-mil axle kits are sold separately.

• Axle Material 7075-T6 Aluminum
• Driver Material Chromoly
• Engagement 60-tooth ratchet ring, 6 pawls with dual teeth for 6° of engagement
• Finish Anodized black with laser-etched graphics and orange labyrinth seal
• Hole Count 36
• Hub Material 6061-T6 Aluminum
• Weight 162 grams / 5.7 ounces (front), 595 grams / 21 ounces (rear w/o axles)

Includes:

• (1) 20mm front axle
• (1) 20mm rear axle
• (2) Axle spacers
• (1) 16 tooth driver

• Flange Diameter: 48mm
• 2.65mm Spoke Holes
• 69mm Flange to Flange Width

• Flange Diameter: 61mm (both)
• 2.65mm Spoke Holes
• 55mm Flange to Flange Width
• Rt. Flange to Center: 28mm