Hand Made in the USA! The Profile Mini cassette sets the benchmark for Cassette hubs and was the first BMX Cassette hub. Refined over the years the hub features a heat treated 6061 aluminium Shell which houses a heat treated Aluminium internal axle and precision sealed bearings. The hub uses the bullet proof Profile driver with 4 pawls and bearings for super smooth engagement and a loud click. ###section### Product Specs HUB TYPE: Cassette AXLE: Drilled Hollow DRIVER: 9T SPOKE HOLES: 36 WEIGHT: 501g