Re: GT50r - do not do it
I had a couple of the GT 50r's and I ended up returning them.
I got one of thatsdax's 4 stroke motors......very happy with it.
It's quiet and it has bags of low end torque.
I'm not really to concerned with top speed....as long as I can go 20mph-I'm a happy boy.
It climbs hills like a mountain goat :-)
If some's good...more is better and too much ain't enough.