ROCKBROS 4 Bearings Bicycle Pedal Anti-slip Ultralight CNC MTB
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Material:
Bearing: Chromium molybdenum Alloy
Others: T6 6061Aluminum Alloy
Feature:
Z4 Bearings, Anti-slip, Ultralight.
Torque test up to 15 million transfer.
the surface takes anodic oxidation, the hardness of surface can be HRC156 °.













