Soma, as we all know, has been diggin the 650B format since 2007 when they showed their B-Side Prototype at Interbike. Since then they have brought the B-Side into production and also brought in the Fire XC tire for 650B under the IRD guise. I am happy to help announce Soma's new tire based on the Panaracer Pasela to be offered in a 650x38B.
Pacenti Cycle Design recently introduce their Pari-Moto tire in this same size. So alt wheel fans should have plenty to rejoice about.
Head over to Rene Herse's blog to read more on the new Soma tire.