B(ike)log — T47

An introduction to T47 Bottom Brackets

Posted by Elite Custom on

T47 Bottom bracket on a Cielo Racer Disc 2017 Chris King says the solution for creaky press-fit bottom brackets is good old-fashioned threads.  Here, we have 3 types, the ThreadFit24 (BSA) the ThreadFit30 (For BSA to Oversized spindles) and the latest Open standard, T47 (Basically a PF30 with Threads)The intention of the T47 is to provide an oversize bottom bracket shell for compatibility with many crank axle variants, and generous real-estate for oversized frame tubes (light, stiff, etc.), but with a quiet and user-friendly threaded cups.The "open" standard means anyone can use it. The standard is designed to allow most...

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