Trek 7.2FX - need different seat.

[AMG]

Hi, I wonder if anyone has knowledge/experience that might help me please.
I have a Trek 7.2 FX with supplied standard seat. Problem for me is summed up by saying that I need to increase the distance from handlebars to rear of seat to suit my frame size.
Current set-up is 5cm shorter than previous bike that I rode - so I'm chasing a seat design that can make this up, and possible add a bit more.
Any ideas anyone?

[rangersac]

Does your seatpost have a setback? If not get one of those and that should solve your problem.

[MattyK]

Seat post and/or stem?