i have a tt-01 and recently take a tc4 kit from the looks of it the tt-01 is no match for tc4 its very simple for begginers and you must buy many hop ups to improve its speed handling ect,the tc4 come with all this almost no need to buy nothing and its very flexible also
for begginers in the tt-01 galaxy the recommended hop ups is aluminium propeler shaft,metal ball bearings,aluminiun steering,turnbucle shafts,oil shocks with medium to hard spring,slick tires,58 turn spur gear ,21,22 turn pinion gear,and aluminium motor mount by gpm racing. dont put useless parts like motor heat sink you dont need the extra weight.