Profile Racing designed the Mini Hub Set to be the best all around hubs available. They are suitable for trails, racing, street, & park use. Aluminum or Chromoly hollow 3/8″axle for dramatic weight savings Cr-Mo or Ti 14mm axle options (14mm Alum nuts included) Cr-Mo or Ti one-piece drivers For Ti Axle Nuts: https://level7bikes.com/products/diabolic-14mm-titanium-axle-nuts For Ti Female Bolts: https://level7bikes.com/products/diabolic-v1-titanium-bmx-axle-bolts-3-8-metric Mini Front Hub Weights:Hub w/ 3/8 Cr-Mo Axle Bolts: 8.15oz / 232gHub w/ 3/8 Ti Axle Bolts: 7.4oz / 206gHub w/ 14mm Mini Front GDH Cr-Mo Axle + Al Axle Nuts: 11.35oz / 323g Mini Cassette Hub Weights:Hub w/ Cr-Mo Axle Bolts w/ 9t Cr-Mo Driver: 13.1oz / 372gHub w/ Cr-Mo Axle Bolts w/ 9t Ti Driver: 11.95oz / 339gHub w/ Ti Axle Bolts w/ 9t Cr-Mo Driver: 12.25oz / 348gHub w/ Ti Axle Bolts w/ 9t Ti Driver: 11.1oz / 316gHub w/14mm Cr-Mo GDH Axle & 9t Cr-Mo Driver: 17.65oz / 501gHub w/14mm Cr-Mo GDH Axle & 9t Ti Driver: 16.5oz / 4681gHub w/14mm Ti GDH Axle & 9t Ti Driver: 13.4oz / 379g