Trek BB90/95
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Trek BB90/95
The BB90/95 standard is used by Trek on many frames. Two sealed bearings (37mm OD) are pressed directly in to the frame's bottom bracket shell. A step is molded in to the frame for the bearings to seat against. Trek BB90/95 frames do not use bearing retainer clips. Compatible with 24mm or 24/22mm spindle cranks only.
Wheels Mfg does not make a cup & bearing system for BB90/95 frames. Your only option is to replace your existing bearings when necessary.
