bottom brackets

CyclingTips Podcast, Episode 15: On creaky press-fit bottom brackets and the promise of T47

Creak, creak, creak… Too many riders with press-fit bottom brackets are all too familiar with that irritating sound, emanating from down below and repeating itself at 90rpm every time you head out for a spin. While press-fit systems can (and often do) perform flawlessly, horror stories abound with tales of ruined frames, cups permanently secured …


Bottom brackets: wrestling with the new standards

It seems as if the number of bottom bracket standards for road bikes has expanded exponentially over the past decade. The traditional threaded design has been replaced by larger threadless diameters that proponents claim allow for both stiffer and lighter frames and cranks. CTech Editor Matt Wikstrom takes a look at the many bottom bracket …


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