Just measured 21 magtek and RS250 magtek, and both are bigger across hub, i got a sneaky feeling it may have been machined down for some other fitment, or like i said earlier, possibly a real early RS wheel, 85-86-87, having said that, RS wheeels have threaded disc mounts, but could have been drilled out, but inclined to think it has been altered. Do you know what bike it was in previous?
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Proud Father of , 05 ktm 400exc supermoto 2018 honda crf rx supermoto