bb30 adaptor

[shotojs78]

Hi can I use that http://www.nexternal.com/icycles/images/22216.jpg if I have a bb30 frame and I want to put a regular crankset as a dura ace 7900??

[keevon]

Yes. FSA makes a very similar adapter that works flawlessly.

You might also consider these:
http://wheelsmfg.com/content/view/785/54/

They allow you to use the BB30 bearings instead of pressing in a threaded adapter. The shims replace the screw-in cups of the Shimano crankset. Looks to be a nice setup, and allows you to easily convert to a BB30 crankset in the future.

http://wheelsmfg.com/images/products/bb30shims_240h.jpg
http://wheelsmfg.com/images/products/bb30shiminbike.jpg