The TiLT better bearings are Tilts idea of a bearing that doesn't include a ABEC rating, or anything talking about how good they are. The main purpose for these bearings is to have a solution that isn't super expensive, is made from high quality materials, and most of all is fast. If you've been looking for that "better bearing" then these are for you. 

Note: Comes in a 4-pack with included bearing spacers.