3Racing has been around for a while. They make lots of hop up parts for lots of chassis. In the last couple of years they have started putting out full chassis. Sakura Zero and XI, F109, FGX and upcoming F113 to name some. Nice quality and incredible prices. The only downside is that there are only a few importers to the US. But, in my experience, ordering direct from Hong Kong only takes a couple of days longer than ordering from the west coast (I'm in ATL) and shipping cost is comparible.