TRAXXAS 20x32x7mm Stainless Steel Black Rubber Sealed Bearings 2pcs - 5196X

Pair of 20x32x7 mm stainless black rubber seal ball bearings. A step above blue-seal bearings, black-seal bearings offer an even tighter seal for ultimate protection and less maintenance in dirty environments.

These bearings are used in the X-Maxx where the upgrade hubs are used on the Maxx 

Rear - 7752X

Front - 7737X