speed passion reventon pro

[Scooby666]

hi guys any help me with this one?

finally soldered my esc yesterday. ive not done a software update yet as i didnt finish till late yesterday. However i set it up as per the manual but do not seem to have any brakes. The car takes off like a scolded cat when you apply the throttle but does not seem to slow when the brakes are applied.
I'm using a dx3s if this helps any more