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.