Dust and dirt is, perhaps, the main enemies of nodes of the bike. Particularly affected by these uninvited abrasives bearings of the carriage. To significantly increase sroi their service, I suggest between the housing of the carriage and a pedal crankset to install a homemade felt seals that can be cut out even from old boots. The intersection of this felt washer and the parts of the bike are lubricated with grease type tsiatim.
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