The most suitable bottom bracket solution for our frames is the PF86 standard. Our bottom bracket tube is very accurate and stiff. The popular BSA solution is not a suitable option for our frames since its narrower shell doesn't leave enough space for lamination. The same applies to T47 which, in addition, interferes with internal cables on our frames. You needn't worry about creaking noises. Our BB shell is a highly accurate carbon tube, whereas BBs on monocoque frames are made of several layers of carbon sheets which tend to delaminate and that's what causes the dreaded creaking noises.