It is an L5 a model that predates the 2005 M6R+ (I think the transition to six speeds happened circa 2002)

If it is a 1999 model it should have a Sturmey Archer 5 speed hub. Some users had problems with this hub, but certainly not all. I would check to see if the gearing has been reduced.

I agree - looks like the reddish brommie sticker...