Originally Posted by
Shimagnolo
I'll be darned; I never thought about the fact I never noticed any attraction when attaching the wheelspeed magnet. I just tried a powerful neodymium magnet on double-butted DT stainless spokes, and it barely grabbed.
Not all stainless steel is non magnetic, some is highly magnetic, and the grads used for bike spokes are slightly magnetic. But all in all, a magnet is the fastest way to identify stainless vs. carbon (plated) spokes.