1,Mountain Bicycle Chainwheel & crank 2,High quality with low price bike parts 3,Pass the ISO 9001-2008 quality standard Chainwheel & Crank Products detailed informationProduct Name:Chainwheel&crankTeeth:52T, 48T, 46T, 44T, 40T, 36T, 32T, 28T,24TCrank Size:175mm, 170mm, 165mm, 152mm, 140mm,127mm,89mmWeight:Ordinary weight or According to customer request.Chainwheel Thickness:2.5 mm ,2.3mm,2.0mm ...