What does sparking means tensioning - centering wheel?

Cut the span: clamping the individual spokes on a impeller so that it is less defective and more stable. This also avoids or eliminated an “egg” of the impeller.

Camp spokes - center wheel:
Supplements of the individual spokes on a impeller so that it is less defective and more stable. This also avoids or eliminated an “egg” of the impeller.

Relevant contributions:
Spring check bike, Patch bike hose