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

[Material]Magnesium alloys are kind of the lightest structural metal alloys, which have many excellent and unique properties, such as high specific strength and stiffness, high heat and electrical conductivity, good damping and shock absorption, excellent electromagnetic shielding capability and easy processing, as well as a good recovery capability, and therefore, increasing attention has been paid to magnesium and its alloys in automotive, communication apparatus and aerospace applications. Consequently, it is considered that magnesium alloys are the most worthy and exploitative “natural engineering materials” with greatly potential application in this century.