Another option:
As soon as the revo platinum is released traxxas should have factory 17mm hubs available. I have the ofna 17mm adapters now and they are pretty good, but I think the factory fit ones will eliminate some of the little sloppiness the ofnas have.
You can see them here:
http://www.traxxas.com/products/nitr...04_details.htm
They should be out soon:
http://www3.towerhobbies.com/cgi-bin/wti0001p?&I=LXUTG9