Most local hobby shops carry very little or no Cen parts. For what I can figure out I Cen has an unwarranted bad rep out there. I know that the Cen GST is a really tough 1/8 MT (a friend has one) yet most people scorn them like they were an old Hyundai from the '80's. The 1 Cen that I own is one of the best RC's I own. Not the precice piece of machinery you expect form 1/8th truggies but
much much better than the $140 I paid would suggest. The good thing for me is Cen is in Placenta, CA and I live the next town over. Probably half of all major RC companies are in Orange County, ca Team Associated, Novak etc. Cen also garantees the parts in stock or it is free.
Here it is with Traxxas Jato Anaconda wheels: