Originally Posted by
sickboy
The Plus 21-5 is an older motor. If I were you I would get the new Plus 21-4.
It's still fast and still reliable, I use a plus 21-7 and in a buggy it's ballistic..I have yet to be pulled anywhere by a plus 21-4..for the tracks i run on the 21-7 is perfect..and the new version is even faster..plus 21-7ms..
