Quote straight from Jeff Titone, July 2008, on MTBR:
"We work with many different manufacturing partners to produce our frames. Here's the breakdown of where our frames are made.
All of our Titanium and Ti/Carbon frames are made in our factory in Tempe.
We began manufacturing the 2007 Racer X 29'ers in Portland by Sapa ('07 wa the first production year for the Racer X 29). For 2008 we moved production of the Motolite and Racer X there as well and continued to have Sapa build the 29'er.
Our complete bikes, the ML1 and RX1 are made by Kinesis in Taiwan. Kinesis also manufactures the El Guapo frame.
The Racer X carbon is also made in Taiwan."