ran a class years ago that used the Mabuchi 540's w/ the WHITE plastic endbell.
Johnson made a motor that looked similar w/ White and another one with a Black (The Black one was a little faster)
R/C Racing since 1985 ~ Santa Maria, CA (Central Coast)
2001-2012 - South-West Tour R/C Oval Series - R.I.P.
...will the SWT be revived? Time will tell, but we ARE returning to the VELODROME in 2016