Bont 688 Mini Bearings
This bearing has an exceptionally fine polished bearing track surface and incredibly precise balls.
Light weight plastic cages for lower rolling resistance.
The steel is extremely strong which helps the bearing keep its shape when under load.
These bearings fit 8mm axles and can be used with the Bont FX1 and Royal Assassin wheels. To use in other wheels you will need the Bont bearing adaptor.