I can't give any reason why the kyosho is better than a hyper 7 I have never ran a hyper 7 I can tell that the kyosho is strong and i have had some big air crashes and not broke anything the one thing i will tell you is the spur gear on the 7.5 is plastic and you will need to chage it with the steel 777 gear.I would also ad diff oil in all the diffs but that is something that needs to be done on all rtr's.