Originally Posted by
theranman
Some might look at the flip side of the coin and claim that lots of seat post showing is indicative of a bike that's too small.
The bike is only too small if the distance req'd between the saddle and bars cannot be achieved without a stem longer than 110-120mm and/or a set back seat post. In general terms the only thing lots of seat post demonstrates is that you've got a lot of stand over clearance - the frame could be too small, too big or just right, having a lot of seat post isn't going to be the determining factor.