Hero Honda Motors today reported a marginal increase in motorcycle sales for the month of December 2006 at 2,45,175 units when compared with 2,45,104 units in December 2005.The company sold 7,287 units of its scooterette, Pleasure, in December.Total sales (including exports) for December stood at 2,52,462 units as against 2,45,104 units in the same month a year ago, an increase of 3%.