just the bearings. any bb30 bearings fit.

Why do you want to replace them ?
I just bought a new set of these because they are made by Ceramicspeed for Sram in Danemark .
Before I used the original bearings from Enduro.
There was also a littele amount of Ceramicspeed blue grease with them.

Has anybody heard of or tired the Hawk-Racing BBS bottom bracket? i have an sl4 and i wanted to run di2 on it. I have tried the praxis rings, the specialized rings and the s-works specialized rings, none of them offer the same shifting performance as the sl3 with english threaded cups and DA cranks and rings. some ring combos on the specialized crank caused me to drop the chain, get it jammed between the rings,all kinds of nightmares! I then found this.Its made to adapt the 46x61mm OSBB carbon shell down to shimano 24mm. no spacers no glue. just light press fit into frame followed by the cranks. Machined 1 piece out of delrin in the USA. they are only $119 had mine in for 3 weeks no noise no complaints and DA CRANKS AND RINGS

http://www.hawkracing.info/components/b ... enge-osbb/" onclick="window.open(this.href);return false;

http://shop.hawk-racing.net/index.php?p ... od&pid=BBS" onclick="window.open(this.href);return false;" onclick="window.open(this.href);return false;