Originally posted by mtc3od
Ea,
You say that you have had experience with 4505's, what do you do when the brush loses its serrations. I can get about a race and a half before my brushes lose the serrations and my motor drops off.
IRS Brush Serration Tool Kit
http://www.teamirsrc.com/battery.html
trinity Brush Serration
http://www.shopatron.com/product/pro...RNTK3107/158.0