Wheels
 

Guys just wondering if you are putting a few washers between the hub and the hex to space it out a bit to stop the wheel from binding? (when using different makes of wheel e.g. Jconcepts)

The hex that Schumacher sells is intended for use with the Losi wheel. The B44 wheel has a deaper hex and hence you either need to use the B44 hex, or washers to make up the difference.