Rear 190mm Dropout lightest and Strongest Metal

Rear 190mm Dropout lightest and Strongest Metal Material Beach Bike Rims Magnesium Alloy Material 20inch Snow Bike Wheels 85mm Width(one Rear Wheel) name:snow bike wheel,beach bike rim spec:20″x3.0-4.0 axle front:M10X135X175W axle rear:M10X190X240W surface:powder paint assembly:screw fixed front wheel:weight1.285kg rear wheel weight:1.488kg speed:7/8/9 tyre:pneunatic tyre 20×3.0-4.0 Check Offer Price [Material]Magnesium alloys are kind of the lightest structural metal alloys, which have...