6704-2RS BMX Sealed Bearing - 27mm-20mm-4mm
$ 11.99
This is one (1) 6704-2RS bearing. It has an OD of 27mm, an ID of 20mm, and thickness is 4mm.
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.