Bike Chainwheel for OPC Teeth: 44T Size:1/2"*1/8,1/2*3/32" Finish: CP/ED HeBei HuaYu Bicycle Co.Ltd is specialized in manufacturing Bicycle crank,hub,chainwheel,brake system presently.it will be our pleasure if we could help you in bicycle parts business . Yours Sincerely HeBei HuaYu Bicycle Co.Ltd Address:Lujia tun industrial zone,GuangZong county,XingTai City,HeBei Province Jackie Jiang,Sales ...