THERE ARE ABOUT 434523454 PROFILE CASSETTE HUBS IN USE TODAY AND THEY ARE WONDERFULL HUBS BUT SOMETIMES STUFF JUST WEARS OUT. THE STUFF LISTED WILL FIT REGULAR AND MINI (LOW FLANGE) CASSETTE HUBS. 1. DRIVER BEARING ($5.95 ea.) EACH DRIVER TAKES 4 OF THESE BEARINGS..ORDER AS MANY AS YOU MIGHT NEED. 2. CASSETTE SPRING ($5.95 ea.) EACH PROFILE CASSETTE HUB TAKES 4 OF THESE..ORDER AS MANY AS YOU MIGHT NEED. 3. CASSETTE PAWL ($4.95 ea.) EACH PROFILE HUB TAKES 4 OF THESE..ORDER AS MANY AS YOU MIGHT NEED. 4. HUB CONE SPACER ($5.95 pr.) EACH PROFILE HUB USES A PAIR..THE $5.95 IS FOR THE PAIR. 5. LOCK NUTS ($3.50 pr.) ONE GOES ON EACH END OF THE AXLE..PRICE IS FOR THE PAIR. 6. HUB BEARING ($5.95 ea.) THERE ARE TWO OF THESE IN EACH PROFILE CASSETTE. THE ONE SHOWN IN THE PHOTO ABOVE AND ONE THAT GOES INBETWEEN THE DRIVER AND THE HUB. $5.95 IS FOR ONE OF THEM SO BE SURE TO ORDER AS MANY AS YOU MIGHT NEED. IF YOU HAVE ANY QUESTIONS BE SURE TO GIVE US A CALL (586) 264-1152