5/16" X 9 Balls Bike Crank Bearings, Replacement Ball Bearing Retainer Cages Set for Bicycle Crank Bottom Bracket of Kids Bike, Lowrider Bike, Beach Cruisers, Pack of 4
One of the ball bearing retainer sizes (5/16” X 9 balls) for traditional bottom bracket service. (Please always measure your original parts to ensure you are ordering the right replacement parts)
The size is compatible with some kids bikes or stationary bike from Schwinn, lowrider bikes, beach cruisers. Please compare your original bearing size with dimension in last image to ensure the compability. It may fit other bikes along as the dimesnions are same.
Lubricated for corrosion resistance and long service life. Please still put some lubricant during installation to maximize its service life