what amp of speedo for a 35amp heli motor

[NEON ROTORS]

just getting my power system setup for my hk 450

[Stanley Speel]

um 35 amp will suffice lol!

The HobbyWing platinum 40A ESC is very good.

However, you'd still be better getting an MCPX instead.

[dillwhacker]

Beware of cheap HK type ESCs, some of them will not do a very slow start, which is helpful with helis. I have a cheap HK ESC on a 450 that works fine, but it won't do a controlled spool-up like the Align ones do, so you have to be careful, or you'll piro on the ground. Cheap & seems robust though, so I guess you get what you pay for.