Got a used Dynamo hub that I want build up for my tandem. Are these indentation from the old spokes cosmetic damage or structural?
Assuming this hub is still ok to use, should I lace the spokes to avoid these indentations? Or lace it up the same?
Also, is more play to be expected with a dynamo hub? I can hear a bit of clicking and feel a small amount or play when I wiggle the axle.
Thanks for any insight
by simplejackbikes
3 Comments
100% Cosmetic and don’t bother worrying about when lacing your wheel. Hub sounds loose and most likely will be corrected with an adjustment.
Re-lace the hub using the same pattern as previous, so that your spokes line up with the grooves. More detail from Jobst, one of the masters: https://groups.google.com/g/rec.bicycles.tech/c/ZIiWuHaLQgY?pli=1
I’ll leave it to someone else to answer whether or not you should re-use the hub. I’m not comfortable making that determination from a couple slightly out of focus pictures. Ride history, quality of the previous wheel build, and other factors you can and cannot know will factor into whether or not you should re-use.
Hubs should have a slight bit of play when not clamped in the frame/fork, but no play once clamped. Rotating the axle you should feel a pattern of strong resistance to turning – low resistance – strong resistance… This notched/indexed/clunky feel is just the effect of the magnets. You won’t feel that when riding.
Cosmetic, spokes bed into hubs. It probably doesn’t matter, but ancient wheel building superstition suggests relacing the spokes in the same way that it was previously build, lacing the spokes in the old ruts. I personally think that’s bogus, lace em up and ride.