Hobbywing xtreme stock speedo

[Naushad]

Hi

Guys I need your advice here!

I've just bought this for a good deal and intend to run it on a b max with a 6.5 or 8.5t brushless motor (sensored )

Now i know the limits with this speedo, but has anyone had experience in running this in an off road with similar motor turns?

Ppl over in rctech claim without turbo and boost options you can get away with a 5.5t motor in an off road. Surely with an added fan over the heat sink this should be possible?

Please offer any advice before I put this speedo through it's paces!

Ta!

Naushad