Bike pedals used to put a metal screw cap to protect the bearings from contamination. Now, instead, use the plastic plugs, which are often lost. Rescue plastic or nylon tubes from medical bubbles. Such substitutes being kept quite steady.
Recommend to read
From road bike to touring bike
I rode the Kharkiv Bicycle Factory’s “Tourist” bicycle for 30 years. It was, perhaps, one of the best Soviet bicycles — not only for active recreation (which it was actually designed for),...
PURITY ENSURED
Two pins on the sides of garbage cans and old plastic bags of suitable size and you will greatly simplify the operation of cleaning and the bucket will remain clean.
