After reading this and a few dozen other threads on Specialized osbb, specialized carbon osbb, bb30, and pf30 compatibility I'm now more confused than when I started.
I have a 2011 tarmac sl3 pro now, with the stock specialized cranks, which the speci website specs as the OSBB frame and crank, http://www.specialized.com/us/en/bikes/archive/2011/tarmac/tarmacsl3prom2red#specs
I understand that this is not the same as the carbon osbb that is used in the s-works models. Where I am now confused is some of the threads state the sl3/sl4 pro frames use standard bb30, like this http://weightweenies.starbike.com/forum/viewtopic.php?f=3&t=103618&start=15
which is not osbb?
At the end of the day, I'm looking to order a power2max unit - I think
the rotor 3d+ is the correct option, but am unsure and want to try and keep the installation as clean and simple as possible and avoid using cups and spacers and conversions if I can.
I apologize in advance if I am thread jacking, but I know there are a lot of threads on this topic and did not want to start another.