![]() ![]() The bearings are then pressed into the cups. Press-Fit refers to aluminum or plastic bottom bracket cups, which are pressed into the frame.Or, have a professional bike mechanic do the work for you. To accurately identify your frame's BB shell, always measure the ID and width. ![]() Wheels Mfg does not offer any compatible bottom brackets for Italian threaded frames.Wheels Mfg does not make the threaded cups for these frames. Aluminum cups are threaded into the frame that result in the BB86 standard (41mm ID x 86.5mm width). ![]() * Colnago standard with a threaded BB shell. * Essentially a PF30 with 92mm wide shell. * Essentially a PF30 with 86.5mm wide shell. BB shell is 83mm wide, but symetricalįrame's bottom bracket shell is threaded with M47 x 1 threads. For the PF30A-83 frames, the BB shell is 5mm wider on the drive side and +10mm wider on the non-drive side.Ĭannondale Asymmetric Integration (Ai) found on Scalpel-Si and F-Si System frames. Specialized carbon road frames with 61mm wide shells for use with Specialized FACT cranks.Īsymetrical BB shell is +5mm wider on the non-drive side (PF30A). Also used by 3T.īB shell is 11mm wider on the non-drive side.
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