Campagnolo will go to a unique, 2 piece crank and bottom bracket configuration of the 2007 model year.
The crank/BB is different than the Shimano in that the crank is 2 "L" shaped items that fit together mechnically in the center of the bottom bracket spindle.
The predominant technological change is the use of ultra-narrow external bearings that lower the crank "Q" factor substantially placing the rider's feet closer together. The bearings are now external, and the spindle is no longer the traditional square taper Campagnolo has been using.
I have no insight into the cosemetic appearance changes of the externals of the cranks.
Tom Demerly
The Tri Shop.com
The crank/BB is different than the Shimano in that the crank is 2 "L" shaped items that fit together mechnically in the center of the bottom bracket spindle.
The predominant technological change is the use of ultra-narrow external bearings that lower the crank "Q" factor substantially placing the rider's feet closer together. The bearings are now external, and the spindle is no longer the traditional square taper Campagnolo has been using.
I have no insight into the cosemetic appearance changes of the externals of the cranks.
Tom Demerly
The Tri Shop.com