JoeyK Posted January 19, 2017 Share Hi guys, I recently bought a supersix frame from silverbird. I am 1.78m tall and my current frame is a 52 cm and to small for me. I have a decent ultegra groupset and decided to upgrade the frame and build all my components on my new frame. My old bike had the external threaded bb. This however is new territory for me, and now it seems that my cranks diameter is less than the pressfit BB. Do you guys know how I can fix this? Can I get a BB30 that will fit my crank? If I remember correctly my crank measures 25mm. If I do find a BB that fits, will there be other problems that might incur in the future? If it comes down to buying a new crank I will rather sell the frame and buy a new bike, and sell my old bike. Cheers Link to comment Share on other sites More sharing options...
shaper Posted January 19, 2017 Share You just need a BB30 adaptor for Shimano (24mm) crank.... speak to your LBS Link to comment Share on other sites More sharing options...
Schnavel Posted January 19, 2017 Share You just need a BB30 adaptor for Shimano (24mm) crank.... speak to your LBS Exactly... It just positions the bearings differently to allow you to run the smaller spindle in a frame designed for 30mm shaft use. Link to comment Share on other sites More sharing options...
JoeyK Posted January 19, 2017 Share Thanks guys, I will speak to my lbs. Herewith a pic of the frame. Cheers Link to comment Share on other sites More sharing options...
Thomo Posted January 19, 2017 Share That's gonna look good when done.!As the others suggested, get a BB30 to 24mm BB. Link to comment Share on other sites More sharing options...
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