For the money i would go for a hobbywing.
http://www.giantcod.co.uk/xerun120as...-p-405854.html
identical inside to a speed passion but just a cheaper casing is all the differences that you will notice. can take down to a 5.5 offroad and 3.5 onroad it says which is more than you would ever need.
i got a xtream stock one for my 10.5 touring racing and its rapid.