Hi Bryan,

The brushes you want have the article number 305100 and they measure 4 x 6 mm.
These are used in the HP 270 - HP 290 motors.

I know guys who run the softer(?), silver toned brushes from Graupner, I'll see if I can get a partnr. on those for you.

Otherwise mail to: [email protected] to get an address for a US distributor.
www.Plettenberg-Motoren.com

In fact, any pair of brushes that isn't substantually harder than the original, and can be made to fit, will do.

Regards, Jan.