I got my Version 4 SMW 17.5. Ran it in my 22T. My old motor was a version 2, and I would run 1/2 to full throttle on a technical offroad course. The version 4 is outstanding. Never over 1/2 throttle, and most of the time, I was running around 1/4 throttle. Im way under geared too. Great motor and scooter is the best to deal with.
Team Driver: Scooters Motorwork : Boca Bearings : Crawford Performance Engineering : RC OMG : Downriver RC : Alycat Software, the only timing you will ever need!
Downriver R/C, Racing since 1986