f77 gen 1 you will get 150km of range with a 4.2 kWh battery swapping mechanism but in gen 2 you get a high range of 300 plus IDV range with 10.5 kWh fixed battery (non-removable).
4
In f77 you get a trills frame structure which increases f77 build quality, gives better strength, and gives sporty look to f77.
In the f77 gen 2, you get mono shock suspension which reduces the damping effect and enhances comfort while riding the bike, mainly this kind of suspension is used in rough, tough
2
This is an improvement that I personally like, in gen 2 architecture you get switched dual-channel ABS(Anti braking system )