I have a set of spin wheels .The one that have metal spokes. The rear free hub went out really only the c-clip that holds the paws together broke .Called spin they say they up grade there design . no longer can get clip .Any body know where theres one at .The up grade will cost 60$ I might try it but thought id look here first .the clip is gust spring steel in a C . Went to hardware and small engine repair place's but no luck .These wheel are still in good shape so 60$ isn't that bad !!!!! Thanks