Originally Posted by
fietsbob
safer mounting : Trailing edge of rotating wheel, as top goes forward , the Bottle dynamo would Be ahead of the fork blade , and ahead of the seat stay tube
that way when it may get loose, rotating wheel wont tend to push it into the spokes with Forward Motion Forces ..
If the pivot axis of the dynamo is vertical, then leading edge mounting will maintain better pressure on the drive roller. Clamps, as you say, should always be mounted on the trailing edge for safety.