^mohamed abec isnt to do with speed did u not read eagles comments it is an industriel norm showing howw far apart the balls are and how far away from the sheilds u can have abec ones that are fasters then abec 9s, it is not a measurement of speed if u get weak abec 9s made out of a weak metal jump a 10 set and after u do that they are abec 3s ^stop posting just for ur postcount unless u actuely no something about what ur posting about in the meantime u should work on ur flat barspins.