the rims i have are like new i had them on my raceing bike but i dont race any more but the rims are 6061aluminum shell with unique axle 3/8 allen head and hollow and sealed bearings very light weightrims and the same for the back rim flip flop with 13/16 drive setup i payed 695,00 for the rims if you like to know more about the rims give me a call at 413 275 6662 and ask for joey