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Delrin cage reinforced.
- Lubricated with speed oil
- No break in period needed
- Delrin cage 20% glass reinforced
- Removable cage for cleaning
These are better then my other bearings. Because of the both sides are closed with caps, dirt doesn't get in easy.
I'm using them 14 months, 1/week (for recreational use and jumping) and they're still spin as fast as day one ! Awesome job thoses Bionics.
Still didn't have to clean them since buying them.