- Computer pouch

29lbs (1038g)

The 20mm dropouts can be dropped down to 10mm with the included inserts

The dropouts are heat-treated to further increase strength

Box One Quantum Cassette Race Hubset Size:20mm - Computer pouchFor more than seven years, Box Founder Toby Henderson has been trying to build a reliable 20 mil rear cassette hub without creating a new cassette standard, the problem was fitting durable bearings between the cassette body and the oversize axle. The rear Quantum hub overcomes this by using the type of one piece driver commonly found on freestyle hubs. Each hubset includes a 1 piece, 16 tooth driver supported by 3 large, roller bearings. Inside the