Bicycle Bottom Bracket Bearings

BICYCLE BOTTOM BRACKET BEARINGS

The bottom bracket bearing is designed to minimize friction, resulting in smoother rotation, lower energy loss, and superior sliding performance.

This design not only reduces drag and improves riding efficiency but also ensures the bottom bracket bearing’s high load-bearing capacity. They can safely withstand the high pressure applied by the rider without damaging the bicycle or affecting its performance.

Ball Retainers

Bearing No. Dimensions(mm) Weight
d D B (g)
163110-2RS 16 31 10 25.8
173110-2RS 17 31 10 25.4
19317-2RS 19 31 7 22.6
19379-2RS 19 37 9 36.7
R12-2RS 19.05 41.275 11.113 61.2
21537-2RS 21.5 31 7 14
22379-2RS 22 37 9 32
R12-2RS/22 22 41.275 11.113 54
24377-2RS 24 37 7 19
24378-2RS 24 37 8 23.2
6805-2RS 25 37 7 22