Good news for Maverick runners :)
 

I've found a supplier in Hong Kong who can source Associated hub convertors - tried all over UK online without much luck.

I've ordered a set for my son's Maverick truck so he can run with 1:10th rims and minipins as the out-of-the-box tyres just don't offer any grip on our polished floor.

Should have them here in a couple of weeks so will keep you posted...