Hello. In terms of speed, both hub-drive and mid-drive perform same. But the difference starts with range and torque. Where in terms of range hub drive has better range due to regeneration capabilities. And for torque mid-drives generate more torque and are flexible as the bike gear system can be used with it.
As of now in India no one sells magnetic e brake sensor. You can buy on Aliexpress if you want. Or you can make one using magnetic reed switches and neodymium magnets. Or you can go for normal e brakes which are sold by several sellers online in India. robu.in/ and robokits.co.in/ have some good normal e brakes.
Hello RnD. Mujhe lag hi raha tha ki audience puchegi ki riding video nhi dala hai. Maafi uske liye. Main jald hi ek riding video daloonga taki logon ko meri ebike ki performance pata chal sake. Video dekhne ke liye shukriya. 😊
Hello Asif. You can check out www.indiamart.com/ and search for 48v 1500 watt motor there. This website is good for buying things at wholesale rate, directly from manufacturers.