Hi Wig, I bought this ESC & motor (7.5t) for my R12r5.1 pan car & so far they're working great. The only issue was you need the program card linked below which isn't (yet) available in the UK. Though the SkyRC program card may well work with the right firmware. The ESC isn't set to blinky so you'll need the card to do this too.
Program. card req'd:
http://www.hobbyking.com/hobbyking/s...ogram_Box.html
Happy racing fella.