THE RALEIGH TWENTY

Your ever-expanding web resource for the Raleigh Twenty
and other classic small-wheel bicycles.

Wheel building with Dave

Knocking-in

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Knocking-in
About half way through the tensioning process, when the spokes have some tension but the wheel is not yet trued, the base of each outer spoke is tapped with a hammer to straighten it and remove the convex bow/distortion where it leaves the hub flange. Many wheel builders do not bother with knocking-in, but that convex distortion of the spokes will pull straighter during initial use, which is one of the reasons why some new wheels can loosen up during the first few rides. A wheel that has been knocked-in, de-stressed and properly tensioned will not loosen up in use, and should not require any remedial attention due to settling-in after a few rides.
Posted by davepalk on May 10, 2018 Full Size|

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