BB Adapter or new BB?

dastac26

Hi, currently i own CAAD12 2017 with BB30A bottom bracket

from what i understand if i want to use shimano crankset on my CAAD i have to either buy a new bottom bracket that will fit shimano crankset or use adapter to allow shimano crankset go into default bb30a of caad

the question is then, which one should i do?

imposter2.0

Assuming you are keeping the CAAD frame and want to use a Shimano chainset, then an adaptor will be your only option. The adaptor is effectively a new BB in itself.

dastac26

Imposter wrote:

Assuming you are keeping the CAAD frame and want to use a Shimano chainset, then an adaptor will be your only option. The adaptor is effectively a new BB in itself.

https://wheelsmfg.com/products/bb-crank ... ranks.html

so if i want to use that adapter, i have to remove the original BB of my CAAD?

imposter2.0

That particular one may just fit into the existing BB, not sure..

sloppyschleckonds

You'll have to remove exiting bearings to fit new bearings.

Any reason for changing chainset?

dastac26

SloppySchleckonds wrote:

You'll have to remove exiting bearings to fit new bearings.

Any reason for changing chainset?

so if i want to use this https://wheelsmfg.com/products/bb-crank ... ranks.html i have to replace completely the original BB that came with my CAAD?

for now i have no reason for changing chainset, my question was just a "what if" question

gary_sparrow

dastac26 wrote:

SloppySchleckonds wrote:

You'll have to remove exiting bearings to fit new bearings.

Any reason for changing chainset?

so if i want to use this https://wheelsmfg.com/products/bb-crank ... ranks.html i have to replace completely the original BB that came with my CAAD?

for now i have no reason for changing chainset, my question was just a "what if" question

I’ve done the exact thing on my caad 12 running the new ultegra . It’s sweet as a nut

StillGoing

I've never found an adapter to be as good as using the correct BB. If you can't find a BB to fit, I'd go for a different crankset that does have a compatible BB.

hazy_day

The adapter you've listed just pushes into the existing bearings as far as I know. I was in a similar position building a Synapse and I had to get a C-Bear BB.

ayjaycee

When the original BB30a on my Synapse started creaking after 2000ish miles, I used it as an excuse to fit a C-Bear BB and Ultegra 6800 crankset. Touch wood, 3000ish miles later and everything is still fine (and quiet). It certainly felt like a well engineered bit of kit out of the box and C-Bear were a pleasure to deal with. IIRC, it wasn't cheap at around £100 but worth it in my opinion.

dastac26

so i think it would be better for long term to have a new BB instead of using adapter

thanks all for the opinion and the discussion