Originally Posted by
norbit2
What is the difference (besides what is on RB's website) between the B.9 H.9 J.9 S.9 and WS.9 I have been out of the hobby for a while and I am a big RB fan. I have always ran a WS7 so I guess all these knew motors in comparison to that. Also is the WS7 3 a big difference. Whats the most and least powerful or what are the different power bands. Thanks