Ceramic Rear Crank Bearing 14x25.8x6 for Nova Rossi Keep Off 4

For Nova Rossi Keep Off 4.
TKO Ceramic Rear Crank Bearing 14x25.8x6 

This is a special bearing with a reduced thickness inner race.

The bearings have double the RPM capability over steel and reduce friction,rotating mass and vibration. Material specs 52100 bearing steel, poly cage, Cerbec balls grade 3.