because there's little market for just cranks. by bundling cranks and rings, the buyer feels they are getting a better bargain since rings cost way more than they should. when you need to buy rings, for just a few dollars more you could buy a whole new crankset with rings!calvus said:I actually really want some XT cranks with the octalink BB. I run a 1x9 and already have 36 and 38T chainrings. Why the heck dosent anyone sell just the cranks? Maybe I just have to get the Truvativ hussefelt/howitzer combo that comes with the 38T ring.