We’ve had good and bad bottom brackets with both standard and ceramic bearings, and the best way to split the wheat from chaff is to subject them to many, many hours of filth.
This bottom bracket has suffered months of hard riding while being submerged in trail filth and washed with regular hose-downs. Six months of that grease killing treatment results in a clear answer.
This reasonably priced Uberbike ceramic bottom bracket passed the test when we unshipped the chain and span the cranks – they whizzed round as if on ice, with no catching or hollow clunking, both frequent signs of impending bearing doom.
The seals/shields work well. With a quick wipe down and regrease of the cleanly-cut cup threads, this is ready for another six wet months.
|Name||Ceramic bottom bracket (Shimano Hollowtech II) (12)|
|Description||• Lighweight CNC machined alloy cups (BC 1.37") with replaceable bearings, anodised finish with laser engraved logo, supplied with matching alloy spacers on MTB bottom brackets (as pictured) Note - Road compatible bottom brackets are supplied with stainless steel spacers. • Advanced bottom bracket design, lengthened space between bearings, enhances stability under pedalling load. • Composite centre tube double O-ring sealed, external custom lipped outer seals. • Uberbike ceramic bearings offer the highest standard of rotating performance, not only greatly reducing the loss of power but also enhancing the best performance of water-resistance. The ceramic bearing system provides better power distribution and provides extra smoothness when pedaling, thus dramatically reducing abrasion and friction. • Benefits over stainless steel bearings • Smoother operation than stainless steel ball bearings. More efficient power delivery at each pedal stroke. • Increased durability. • Water resistance. • Lower friction coefficient.|