Exchanging the Bearings in your Front Wheels
Replace the 1150 Plastic Bearings in your front wheels with 1150 Sealed Ball Bearings. (There are 4 bearings to be replaced in total, 2 for each wheel.) It is not necessary to apply grease to the shaft when applying Ball Bearings. Please wipe off grease already applied to the shaft. For more details, please refer to Step 17 of the instruction manual.