BB Conversion Unsealed to Sealed

BB Conversion Unsealed to Sealed for BMX
BB Conversion Unsealed to Sealed for 2inch American size BB shell.If you have Unsealed Bearings in your 3pc cranks and want to upgrade to sealed you can buy this kit. Included Sealed BB and sealed BB 8spline axle.If you cranks got loose and you keep needing to tighten them then you need new bearings and cups as yours are warn out and wont stay tight.