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.
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Give the trunk aerodynamics too!
To begin with, I suggest that car‑enthusiast readers run a small experiment. Next time you drive out of town, stop on a high‑speed stretch of highway and watch the passenger cars rushing...
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Undoubtedly of interest to many tourists are the publication of the journal "modelist-Konstruktor". But they mainly describe the various vehicle designs and less emphasis on other...
