New Cervelo Aspero

[Mark McM]

Originally Posted by prototoast

T47 is really useful for metal frames, because it allows for more clearance for wider spindles and cables to run through the bottom bracket. For carbon frames where the area between the cups isn't just a cylinder, the only real advantage of t47 over BSA it allows for the use of short spindle 30 mm cranksets, but that's a pretty minor benefit, especially since those don't seem to be in production anymore.

The other advantage of T47 over BSA, which is being utilized by the new Aspero under discussion, is that it allows for a wider BB shell, which in turn allows for wider/fatter chainstays (or at least a wider left chainstay in the case of BBright).