Siren sings a song of 650B.

Siren Bicycles is a custom shop out of California producing 6 models out of steel and aluminum. Quite the diverse offerings, too. Hardtails, soft-tails, 26", 69rs, 29" and now a 650B in their Song model.
Their flexing titanium plate, paired with Cane Creek dampening unit supply the Song with 1.5" of smooth travel. The Song 55 and Song 29 have been staples in their line up but this is the first build around the 650B platform. The frame is a custom with some very nice features.

(click for a larger view)

Be sure to visit the Siren Home Page located at
www.sirenbicycles.com
and their weblog can be viewed at
www.sirenbicycles.wordpress.com
Very impressive work being done, check it out!