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
THE ETERNAL BUS
Judging by the works submitted to the contest by Cycling, and today they have solved two major technical problems: the creation of a roomy trunk with a bag or holdall and protection of...
BAR PLUS BAND
When processing large surfaces of metal or wood, each master uses to fasten sandpaper to any device. One of the simplest: a piece of wood, girded with a rubber ring This method is...
