are you using automatic gears? I haven't tested them but if you use manual gears they work just fine.
ok I'll try it
I tried the manual gears and it's still only going 10 mph
did you manually shift all the way through the gearbox? 8th gear on both models works fine and goes 18mph for me. other than that I'm not sure.
working now thanks
you should do 40 series and 50 series
