Ceramic Model G5
Tripeak 6903 LLB Ceramic Bearing | ABEC5 17X30X7MM
Bearing Specification:
Inner diameter: 17mm
Outer diameter: 30mm
Width: 7mm
Application: Wheel hubs
Abec5 Ceramics
Ceramic bearings utilize G5 grade ceramic balls and are combined with a precision machined steel race, providing excellent rotational performance for cyclists.
P05 precision steel ball bearings for reassuringly high smoothness and durability. 0.005 mm for raceway runout (out of roundness) on the inner race. That's precision.