Specialized Tarmac sl5/year 2015 BB?

[mushroom]

Hello there,

I have Tarmac SL5/year 2015 model.
QUARQ DFour91 BB30 Power Meter Crankset

i need to order bottom bracket for 30mm quarq axel. at the moment i have adapters to 24mm axel for shim system.
I googled a lot and found that Shell Diameter is 42 not 46, as most bb30 PF and Shell Width would be 68 because i already have year 2015 model, so i understood at that year they changed BB dimensions for tarmacs.


What are the options wich i could choose, i would not like to buy kogel. I would like to look at some other options, possibly not ceramic cuz i dont see a point in that, specialy if they not properly sealed.

Hope to hear your experience and have a nice day.

[cerro]

It has a classic BB30 bottom bracket.

SL4 had plastic cups making the frame from OSBB to BB30 but SL5 got BB30 molded in.

[mushroom]

It has a classic BB30 bottom bracket.

SL4 had plastic cups making the frame from OSBB to BB30 but SL5 got BB30 molded in.

i mean today "standart" dosent mean standart?

isnt classic 46 shell diameter?

[cerro]

mushroom: Cannondale introduced BB30 36x42 in 2001 or something like that. Before every pressfit bb's with plast cups was come up with.