Just a quick note. We've updated our Praxis Conversion BB spec.
Uptick in the 6805 bearing and Grease quality, and also we added some wiring windows to try and help people.

Have a look here - http://praxiscycles.com/pages/conversion" onclick="window.open(this.href);return false;

Also a heads up it is now being distributed to dealers in Canada, the UK, and Australia.

Thanks,
Adam@Praxis

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Praxis Works
Manufacturer
Santa Cruz County, CA

I have a new 2013 Cannondale Evo coming and I only run Shimano cranks. I will run the new 9000 cranks and I have been stressing about this very subject. I have done a ton of research and it seems that the Wheels reducers are a simple and fairly reliable solution but I hear that the OE bearings are often pretty lackluster. The Praxis looks very nice but I have been considering the Hawk Racing BB30.24 Adapter - http://www.hawk-racing.com/accessories/bb3024.htm" onclick="window.open(this.href);return false;. I like it's simplicty and I know a lot of people who use their products and like them. Has anyone had experience with these?