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
LET THE WIND
The wind has always been a symbol of impermanence, and attempts to transform its energy into electrical energy has led often to results that are not very encouraging. Indeed, everything...
WHERE TO PUT THE WRECKAGE OF THE SAWS?
And really, where? To throw away? It is a pity, after all, made of fine steel, they may be able to provide for drilling in the sheet material of large diameter holes. The holder design...
