magnesium wheel 1.Patent & SGS approved 2.The sole & biggest manufacturer 3.Shock absorbing 4.No deformation magnesium wheel 1. Specification Model700C*23C-45C StructureFixed GearSize700C*23C-45C MaterialMagnesium AlloyAssemblyLocknut AlexF: M9*100*108, R: M10*135*145 8-9SGross WeightF/1400g, R/1550gColorPowder Spraying: White, Black, Red, Bule, Yellow, Green2. What is MAGNESIUM BICYCLE WEELS? ...