MR 21531 LLU Max Enduro Bike Bearing 21.5x31x7

MR 21531 LLU Max Enduro Bike Bearing 21.5x31x7

Enduro Max Bearings Specification:

Maximum quantity of Grade 10 Chromium Steel Balls:
MAX bearings are filled completely with high precision Grade 10 balls for maximum load capacity. No retainer means these bearings have 40 percent more capacity. The balls must be filled by hand, through a precision slot ground into the inner and outer race.

52100 High Carbon Chromium Alloy Races:
Purest alloy steel with the toughness like no other. MAX bearings use CRC Marine Grease, will not wash out or break down under any extreme circumstances. Even salt water will not penetrate or break it down.