The Bajaj Auto motorcycles sales posted a growth of 50% for September 06 at 271,377 units as against 180,926 units for the the same period last year.Acccording to Bajaj Auto's release to the BSE, the company's estimated motorcycle market share stood at 37.9%.Total two and three wheeler sales for September 2006 were at 300,141 units, a growth of 37.67% over 218,012 units of September 2005.A total of 37,088 units were exported, a growth of 58% over 23,463 units of September 2005.