6905/7905-2RS BMX Sealed Bearing - 42mm-25mm-9mm 30t They fit most sized bars

They fit most sized bars

the oversized bottom bracket interface showcases a step-down shape specific to the crank arm length meeting at the pedal boss

This will fit 27

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6905/7905-2RS BMX Sealed Bearing - 42mm-25mm-9mm 30t They fit most sized barsThis is one 6905 7905 2RS bearing. This bearing will work with many freecoaster hubs. It has an OD of 42mm, and ID of 25mm and thickness is 9mm. This is one bearing; if you need a pair, buy 2! Be sure to measure your old bearing to ensure this will fit. The appearance of this part may vary slightly from the photo.