brand new cannondale frame but no bb

radiation man

im thinking of buying a brand new cannondale supersix evo frame but the frame comes with no bottom bracket, im sure sram pushfit bb30 fits the cannondale but i want to put ultegra 6750 compact chainset on so im told i need an adaptor as well but not sure what pfbb30 to buy or what adaptor i need. i also keep seeing posts about bb30 creaking i have always used a threaded bb and no creaking,

dj58

Have a read through these Park Tools webpages:

http://www.parktool.com/blog/repair-hel ... tandards-1

http://www.parktool.com/blog/repair-hel ... nd-removal

http://www.sjscycles.co.uk/wheels-manuf ... prod21806/

IrishMac

Stick a praxis works adaptor in

Brynd

The Praxis Works adapter is said to be one of the best.

http://praxiscycles.com/product/shimano-conversion-bb/

http://www.youtube.com/watch?v=Eory8iw2BqU

Serious Cat

Great question OP, there is guy in club I ride with that bought a cannondale evo and it has the bb30, it's brand spanking new bike and the bottom bracket creaks like a bee-yatch in a way that would drive you mad. Stick with hollowtech II as it just works.

sloppyschleckonds

My bb30 only creaks when I push out more than 450 watts.

Hope this helps.