How to Make 80 km/h High Speed Electric Bike

Hi Guys, in this video i am making a high speed electric bicycle. this high speed electric bicycle can go more than 80km/h at full throttle and this high speed electric bike can travel up to 70 km on single full charge, this high speed electric bicycle uses 48V 37Ah Lithium ion Battery, this high speed bicycle can run without any problem and with weight of 100kg, but be careful when riding this high speed bicycle, this high speed bike running with 900W 48V BLDC Motor,if u are running this high speed electric bike make sure to wear safety gears, if u are less than 50 kg you can go with more speed, it is very fun to ride this high speed electric bike with 80km/h you can find all details in video, hope you like this high speed electric bike parts -old bicycle -48V 900W E-Rickshaw Motor -48V 900W Controller -48V 37Ah Lithium-ion Battery -2“X1“ Metal Pipe -metal sheets Please help me to Reach 500K ht