SE Bikes Center-Lock Disc SRAM XD 11-Speed Available Bicycle Rear Hubs
About SE Bikes - "In 1977, SE Racing was born with the goal of producing innovative BMX bikes for riders everywhere. Soon after, SE produced the first race ready high-end aluminum race bike, the JU-6, featuring stiff Floval tubing. This groundbreaking bike was further modified and became the legendary PK Ripper."
This should correspond to the type of brakes you have on the bike.
The cassette body type is the type of cassette and number of speeds the hub will accept.
These models are available for online purchasing and can be shipped directly to you.