supply of bicycle free wheel half ball hardness 55 hrc as per is 1283 and other bicycle parts as per alimco specification supply of bicycle free wheel half ball hardness 55 hrc as per is 1283 and other bicycle parts as per alimco specification , bicycle free wheel half ball hardness 55 hrc min . as per is: 1283 ( as per alimco drg. ) , bicyclebreak rod with lock dia 3.5 mm min x 7 rickshaw b.c.p. ( as per alimco drg. ) , bicycle handle tightner assy. ( as per alimco drg. ) , bicycle chain adjuster assy. heavy duty washer 16g, clip thk 0.9 / 0.8 mm ( as per alimco drg. ) , bicycle head tube face pipe ( as per alimco drg. ) , spring tension ( as per alimco drg. )