Many thanks for your time.
Basically this comes from the fact that I puchased a carbon fibre monocoque frame, supplied with external BB. However the cranks will not turn over due to a lack of clearance on the frame. The manufacturers have told me to replace the external BB with a the standard BB. This with new cranks will give me the clearance I need. Hence the question as to whether I am losing out on what I believe (perhaps wrongly) is a stiffer crank. And my concern(again perhaps unfounded) that standard BB will soon be phased out by manufacturers in favour of the externals...
Any reply to this?
Matt