The reason is possible loosening of a retaining ring on the
bearing block of the pedal system.
Key statement: Tire tread provided with circumferential grooves delimiting two edge rows provided with a plurality of transverse grooves, those of one edge row forming at least one
bearing block protruding on at least one delimiting wall, each comprising a surface capable of coming into contact with another surface during contact with the ground and at least one passageway for a fluid between each
bearing block of a groove and the bottom of the groove.
Alternatively, it can be screwed onto a
bearing block lubrication connection as it is equipped with a lubrication passage with male and female threads enabling automatic lubricators to be used with the monitor.
This feature ensures that a constant flow of oil is maintained within the
bearing block and contact surfaces.
The single block weighs a very light 195gms, (6.9ozs), including the shackle -- the highest strength for a weight ball
bearing block on the market.